US3689017A - Props - Google Patents

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Publication number
US3689017A
US3689017A US97901A US3689017DA US3689017A US 3689017 A US3689017 A US 3689017A US 97901 A US97901 A US 97901A US 3689017D A US3689017D A US 3689017DA US 3689017 A US3689017 A US 3689017A
Authority
US
United States
Prior art keywords
shank
base plate
prop
head plate
spigot
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
US97901A
Other languages
English (en)
Inventor
Ronald William Stanley Harvey
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.)
A R I PROPAFLOR Ltd
Original Assignee
A R I PROPAFLOR Ltd
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 A R I PROPAFLOR Ltd filed Critical A R I PROPAFLOR Ltd
Application granted granted Critical
Publication of US3689017A publication Critical patent/US3689017A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02447—Supporting structures
    • E04F15/02464—Height adjustable elements for supporting the panels or a panel-supporting framework
    • E04F15/0247—Screw jacks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02447—Supporting structures
    • E04F15/02464—Height adjustable elements for supporting the panels or a panel-supporting framework
    • E04F15/0247—Screw jacks
    • E04F15/02482—Screw jacks with a variable angle between panel and support
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/48—Chocks or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props

Definitions

  • This invention relates to props and particularly to props designed for use in supporting floor panels.
  • a machine has an installation leading to and from it a large number of conductors and/or cables, it is convenient to have a readily accessible under-floor space in which to accommodate the latter. This leads to the provision of a floor made up of panels of rectangular or other polygonal shape supported at their corners by props.
  • the props which come into question have a base plate from which upstands a shank carrying at its upper end a head plate on which the load is supported. It can and indeed frequently does happen that the surface on which the base plate rests is unyielding and uneven. In that case, the shank may be tilted out of plumb and the bearing surface of the head plate be tilted out of the horizontal plane and be ineffective to spread the load which is supports. Also, if the head plate has to support a number of continuous floor panels or the like, the upper surfaces of these may not be flush with each other.
  • connection such that by turning the shank about the vertical axis of the base plate, the head plate is caused to gyrate and the plane of its load-bearing surface to take up any desired inclination to the horizontal.
  • the shank and the base plate have a spigot and socket connection, the socket providing for the spigot a bearing-surface the plane of which makes an acute angle with the plane of the base plate and the cooperating surface of the spigot being in a plane which makes the same angle with the axis of the shank.
  • the shank can be turned about its axis relatively to the base plate into a position in which that axis and the normal to the base plate coincide.
  • the head plate is in a plane parallel to that of the base plate as in the conventional prop.
  • its axis becomes tilted as does the head plate through an angle which lies between zero and the above mentioned acute angle. If, therefore, the base plate is out of the horizontal plane by an angle not exceeding the same acute angle, the head plate can nevertheless be brought into the horizontal plane.
  • FIG. 1 illustrates diagrammatically, the condition for which the prop in accordance with the invention is designed to cater;
  • FIG. 2 is an elevation of a prop in accordance with the invention partly in section, showing it in its normal upright position;
  • FIG. 3 is a similar elevation of the prop with its shank inclined to the vertical.
  • FIGS. 4 and 5 are respectively an elevation and a plan of a more practical form of the prop.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the props rest on a concrete raft 20 having an upward excrescence 22 causing the left hand prop to be tiled out of the plumb. As will be seen, the floor panels 10, 11 are then badly supported and are not flush with each other at their meeting edges.
  • the props are provided with connections between their shanks and their base plates which enable the head plate to be brought from the position shown on the left hand side of FIG. 1 to that shown on the right hand side in spite of the tilt caused by the excrescence 22.
  • FIGs. 2 and 3 One form of such a connection is shown in FIGs. 2 and 3 which, again, are somewhat diagrammatic.
  • the prop has a base plate 14, a shank 16 and a head plate 18.
  • the base plate and the shank of the prop are provided with a spigot and socket connection, the spigot or male member 24 being provided on the shank and the socket or female member 26 being provided on the base plate.
  • the spigot 24 and socket 26 are respectively complementary male and female truncated cones having an angle of convergence (1 as shown in FIG. 3 and the socket is set so that its axis makes the same angle a with the vertical.
  • the shank 16 is provided with an annular rib 32 the lower surface 34 of which is in a plane making the angle a with the horizontal and which rests on the surface 26 of the socket which also lies in that plane.
  • the shank and head plate will gyrate about an axis making an angle a with the vertical plane so that the bearing surface of the head plate takes up the position shown in which it is in a plane making an angle a with the horizontal.
  • the prop can be set with the bearing surfaces of its head plate at any desired angle to the horizontal not exceeding a. It follows that if the base plate is tilted as shown in FIG. 1 at an angle not exceeding a, the head plate can nevertheless be brought into the horizontal position by the simple process of turning the shank of the prop relatively to the base plate.
  • FIGS. 2 and 3 can be used upside down, the base plate becoming the head plate and vice-versa. In that case, the angularity of the head plate is adjusted by turning the socket relatively to the spigot.
  • the prop can usefully be made of adjustable height as shown in FIG. 4.
  • the prop shown therein has a base plate 14, a shank l6 and a head plate 18 corresponding to those of FIGS. 1-3, the shank and base plate having a spigot and socket connection designated generally by the reference numeral 40 which corresponds exactly with that described above in relation to FIGS. 2 and 3.
  • the shank 16 is in two complementarily screwthread parts 42, 44 so that by turning one relatively to the other the length of the prop can be adjusted, a locknut 46 being provided to hold the prop in the adjusted condition.
  • the head plate shown in FIGS. 4 and 5 is designed to support a number of floor panels and hold them against 5 movement relatively to each other in the horizontal plane. To that end, the head plate has formed in it a cruciform groove 48. If then the panels 50 (of which only one is shown) are provided with depending flanges, the latter can be engaged in two branches of the groove and be positively held.
  • a prop for supporting floor panels comprising:
  • a base plate having a lower support surface on which said prop rests, a shank upstanding from said base plate, said shank having an upper end, a head plate having a top surface designed to support said floor panels, said head plate being connected to said upper end of said shank;
  • a spigot and socket connection positioned between said base plate and said head plate for altering the plane of said top surface of said head plate relative to the plane of said lower support surface of said base plate by rotation of said shank relative to at least one of said plates
  • said spigot and socket connection comprising a male truncated cone having an angle of convergence (1 and a corresponding female truncated cone also having an angle of convergence a, said male truncated cone rotatably fitting within said female truncated cone, said male and female cones being arranged so that their axes make acute angles with the upright axis of said shank;
  • said spigot can be rotated relative to said socket to bring said plane of said head plate parallel to said floor.
  • a prop according to claim 1 comprising upright adjusting means for adjusting the distance between said base plate and said head plate.
  • a prop according to claim 3 which comprises an annular rib provided on said shank, said rib having a lower bearing surface designed to support said shank on said female truncated cone.
  • said shank includes an upper part, a threaded length of said upper part, a lower part connected to said male truncated cone, an internal threaded length on said lower part in which said threaded length on said upper part is threaded, whereby the length of said shank can be adjusted by screwing said upper part relative said lower part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Floor Finish (AREA)
  • Foundations (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Tents Or Canopies (AREA)
US97901A 1969-12-18 1970-12-14 Props Expired - Lifetime US3689017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6181669 1969-12-18

Publications (1)

Publication Number Publication Date
US3689017A true US3689017A (en) 1972-09-05

Family

ID=10487495

Family Applications (1)

Application Number Title Priority Date Filing Date
US97901A Expired - Lifetime US3689017A (en) 1969-12-18 1970-12-14 Props

Country Status (11)

Country Link
US (1) US3689017A (de)
JP (1) JPS5011171B1 (de)
BE (1) BE760466A (de)
CH (1) CH526700A (de)
DE (1) DE2062536A1 (de)
DK (1) DK145634C (de)
FR (1) FR2073989A5 (de)
GB (1) GB1340184A (de)
LU (1) LU62258A1 (de)
NL (1) NL7018247A (de)
SE (1) SE375354B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035967A (en) * 1972-12-22 1977-07-19 A. R. I. Propaflor Limited Raised floor panels
US4570397A (en) * 1984-02-22 1986-02-18 Creske Edward J Adjustable pedestal
US4942708A (en) * 1988-11-23 1990-07-24 Wenger Corporation Panel assembly and support structure for elevated floors
US5957424A (en) * 1996-04-01 1999-09-28 Klaus Krinner Device for the vertical arrangement of a pole or post-like object
EP0992316A1 (de) * 1998-10-07 2000-04-12 Renault Automation Comau Handbetätigte Vorrichtung zur Richtigstellung der Position einer Elektrospindels bezüglich eines Trägers
US20040154240A1 (en) * 2003-02-06 2004-08-12 Hiroaki Hiraguri Sound insulating floor structure
DE102006023404A1 (de) * 2006-05-17 2007-11-22 Johannes Schulte Zeltboden
US20110232208A1 (en) * 2010-03-26 2011-09-29 Ramin Tabibnia Apparatus for Establishing a Paver over a Subsurface
US8408845B2 (en) * 2011-04-15 2013-04-02 Swanson Industries, Inc. Pedestal support for mine prop
US20150184398A1 (en) * 2010-03-26 2015-07-02 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US9879385B2 (en) 2010-03-26 2018-01-30 Ramin Tabibnia Apparatus and related methods of paving a subsurface

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2900759C3 (de) * 1979-01-10 1986-05-07 Marbeton Kies- U. Betonwerk Marstetten Gmbh, 7971 Aitrach Aufgeständerter Boden
FR2549870B1 (fr) * 1983-07-27 1986-01-31 Materiaux Etancheite Entrepris Plots pour dalles de circulation
EP0309399A1 (de) * 1987-09-23 1989-03-29 Zurecon Ag Stütze für einen Doppelboden
FR2628463B1 (fr) * 1988-03-10 1990-12-07 Siplast Sa Plot a hauteur reglable et son application comme support d'elements tels que caillebotis ou dalles
GB2262110B (en) * 1991-11-11 1995-08-09 Jefferies Robert Clive A pedestal
SG164260A1 (en) * 1994-04-20 2010-09-29 Steven Lian Hock Chew Improvements in or relating to an elongate support
GB9901188D0 (en) * 1999-01-20 1999-03-10 Williams Graham Floor craddle
ES2325710B1 (es) * 2007-03-29 2010-06-21 Promociones Brial, S.L. Suelo desmontable.
SG146580A1 (en) 2007-03-29 2008-10-30 Promociones Brial S L Assembly system for floor and/or wall tiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH59268A (de) * 1912-03-13 1913-05-02 Blumer & Cie Deckenlampe für elektrische Beleuchtung mit ausziehbarer Lichtblende
US1818633A (en) * 1926-08-27 1931-08-11 Jeffrey Mfg Co Mine prop
US1879030A (en) * 1928-11-14 1932-09-27 Ingersoll Rand Co Drill column
US3470663A (en) * 1968-05-24 1969-10-07 Tate Architectural Products Pedestal unit for access floors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH59268A (de) * 1912-03-13 1913-05-02 Blumer & Cie Deckenlampe für elektrische Beleuchtung mit ausziehbarer Lichtblende
US1818633A (en) * 1926-08-27 1931-08-11 Jeffrey Mfg Co Mine prop
US1879030A (en) * 1928-11-14 1932-09-27 Ingersoll Rand Co Drill column
US3470663A (en) * 1968-05-24 1969-10-07 Tate Architectural Products Pedestal unit for access floors

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035967A (en) * 1972-12-22 1977-07-19 A. R. I. Propaflor Limited Raised floor panels
US4570397A (en) * 1984-02-22 1986-02-18 Creske Edward J Adjustable pedestal
US4942708A (en) * 1988-11-23 1990-07-24 Wenger Corporation Panel assembly and support structure for elevated floors
US5957424A (en) * 1996-04-01 1999-09-28 Klaus Krinner Device for the vertical arrangement of a pole or post-like object
EP0992316A1 (de) * 1998-10-07 2000-04-12 Renault Automation Comau Handbetätigte Vorrichtung zur Richtigstellung der Position einer Elektrospindels bezüglich eines Trägers
FR2784320A1 (fr) * 1998-10-07 2000-04-14 Renault Automation Dispositif de positionnement d'un corps par rapport a son support et notamment du corps d'une electro-broche par rapport a son support
US20040154240A1 (en) * 2003-02-06 2004-08-12 Hiroaki Hiraguri Sound insulating floor structure
US7520096B2 (en) * 2003-02-06 2009-04-21 Taisei Electronic Industries Co., Ltd. Sound insulating floor structure
DE102006023404B4 (de) * 2006-05-17 2008-01-17 Johannes Schulte Zeltboden
DE102006023404A1 (de) * 2006-05-17 2007-11-22 Johannes Schulte Zeltboden
US20110232208A1 (en) * 2010-03-26 2011-09-29 Ramin Tabibnia Apparatus for Establishing a Paver over a Subsurface
US8453391B2 (en) * 2010-03-26 2013-06-04 Ramin Tabibnia Apparatus for establishing a paver over a subsurface
US20150184398A1 (en) * 2010-03-26 2015-07-02 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US9410296B2 (en) * 2010-03-26 2016-08-09 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US9879385B2 (en) 2010-03-26 2018-01-30 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US10415191B2 (en) 2010-03-26 2019-09-17 Ramin Tabibnia Plant tray
US8408845B2 (en) * 2011-04-15 2013-04-02 Swanson Industries, Inc. Pedestal support for mine prop

Also Published As

Publication number Publication date
JPS5011171B1 (de) 1975-04-28
LU62258A1 (de) 1971-05-14
DK145634C (da) 1983-06-20
DK145634B (da) 1983-01-03
CH526700A (de) 1972-08-15
BE760466A (fr) 1971-05-27
NL7018247A (de) 1971-06-22
GB1340184A (en) 1973-12-12
SE375354B (de) 1975-04-14
DE2062536A1 (de) 1971-06-24
FR2073989A5 (de) 1971-10-01

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