US3667174A - Expansible reveal with frontal tear strip for plaster walls - Google Patents

Expansible reveal with frontal tear strip for plaster walls Download PDF

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US3667174A
US3667174A US11206A US3667174DA US3667174A US 3667174 A US3667174 A US 3667174A US 11206 A US11206 A US 11206A US 3667174D A US3667174D A US 3667174DA US 3667174 A US3667174 A US 3667174A
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wall
front wall
separator
side walls
slabs
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US11206A
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Robert W Arnett
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6807—Expansion elements for parts cast in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/04—Patterns or templates; Jointing rulers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E04F2013/066—Edge-protecting borders for expansion joints between two plaster layers

Definitions

  • a neat joint between the side of the divider member and the abutting surface of the cast material is difficult to achieve.
  • the plaster or other material tends to splash over the divider member.
  • the divider member should be wiped clean before the splashed over material cures, because removal after curing results in pulling away patches of the plaster on the finish side. This, of course, is tedious and thus economically unsound.
  • a channel is used as the divider member, sharp edges at the channel sides may provide a sufficient discontinuity to prevent any bonded juncture between the splashed over material and the plaster on the finish side. However, the channel will have to be cleaned later with consequent penalty as to Cost.
  • Another solution is to apply masking tape over the solid separator or channel separator. This usually results in pulling patches of material from the finished side. Applying the tape is also time consuming.
  • the primary object of this invention is to provide a simple screed that forms a decorative expansible reveal free of the foregoing disadvantages.
  • I provide an extruded separator or screed of hollow generally rectangular configuration.
  • the front wall is joined to the side walls by thin fracture webs.
  • the webs are so located as to form small sharp V-grooves, the webs being located at the troughs of the grooves with the side edges of the front wall forming the inner sides of the V-grooves and the side walls of the screed forming the outer sides of the V-grooves.
  • the front wall forms a tear strip removed after the plaster is set. A clean reveal remains.
  • Attaching flanges form lateral extensions of the rear wall of the screed.
  • the rear wall is curved, sinuous, or otherwise non-linearly formed to allow the side walls to move toward and away from each other as the cast wall expands and contracts.
  • FIG. 1 is a pictorial view of a length of an extruded separator or screed incorporating the present invention.
  • FIG. 2 is a view similar to FIG. 1 but showing the separator installed.
  • FIG. 3 is a sectional view taken along a plane corresponding to line 3-3 of FIG. 2.
  • FIG. 4 is a sectional view similar to FIG. 3 but illustrating a separator having a difierent reveal size.
  • the separator or screed shown in FIG. 1 is a one-piece extrusion of generally T-shaped configuration.
  • plastics or other materials may be used.
  • the plastic is flexible and soft enough to permit it to be'readily cut to length and to be nailed in place.
  • Polyvinyl chloride fulfills the requirements.
  • the center leg of the T-shaped separator is itself a hollow four-sided structure, there being opposite parallel side walls 10 and 12, a front wall 14 and a rear wall 16. Extending laterally from the comers at the rear wall are attaching flanges 18 and 20. These flanges may be tacked to the lath W or other wall base upon which plaster or other cementious material is intended to be cast. Holes 24 for the tacks may be provided if desired.
  • the side walls 10 and 12 are designed to form edging for the opposed ends of the plaster slabs or wall sections A and B cast on the wall W.
  • the outer ends of the side walls 10 and 12 are inwardly beveled as at 22 and 23 so that the ends of the walls 10 and 12 terminate at sharp edges.
  • the ends of the front wall 14 are similarly inwardly beveled as at 26 and 28. Accordingly, frontally facing shallow V-shaped grooves 30 and 32 are formed.
  • the front wall 14 is substantially flush with the edges of the side walls.
  • the thickness of the front wall 14 only very slightly exceeds the depth of the V-grooves 30 and 32; the front wall is thus joined to the side walls 10 and 12 only by a thin fracture web.
  • the wet plaster is applied to the wall W with a thickness equal to the dimension of the separator side walls 10 and 12.
  • the separator forms a ground along or across which a feather edge may be moved.
  • Laterally extending interlock flanges 36 and 38 extend outwardly from the side walls 10 and 12 to provide a firm connection.
  • the side walls 10 and 12 move correspondingly, being anchored to the respective slabs by the T-head interlock flanges 36 and 38. This movement further is ensured by the inwardly arched configuration of the rear wall 16. No unsightly crack develops between the side walls 10 and 12 and the corresponding surfaces of the plaster material.
  • a wall structure including a support and a pair of separate slabs of plaster-like material cast in situ on said support, the combination therewith of a unitary elongated expansible hollow separator between said slabs:
  • said separator having a front wall, a rear wall and opposite side walls;
  • said rear wall including a pair of planar flanges for attaching said separator to said support with said front wall facing outwardly, said flanges respectively extending slabs'are formed, said fracture webs being defined by inwardly beveled outer ends of said side walls, said front wall being substantially flush with said side wall outer edges so that upon removal of said front wall said separator is exposed only at the region of its hollow interior; and
  • each said side wall being provided with an anchor means disposed intermediate said front and rear walls and extending laterally outwardly from that side wall, the outer end of each anchor being a T-head locking the side wall to its associated slab for conjoint movement therewith.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Finishing Walls (AREA)

Abstract

An extruded generally T-shaped separator or screed is tacked along the wall base with the center leg projecting outwardly. Plaster is applied to the wall base to interlock opposite sides of the screed leg. The screed leg is itself hollow, the frontal exposed side being a tear strip finally removed to form a reveal, and the rearward side being bowed or sinuous to form an expansion mechanism. As the plaster expands and contracts transversely to the screed leg, the reveal opens and closes correspondingly without any separation of the leg sides from the respective sections of the cast wall.

Description

United States Patent Arnett 15] 3,667,174 [451 June 6, 1972 54] EXPANSIBLE REVEAL WITH FRONTAL TEAR STRIP FOR PLASTER WALLS [72] Inventor: Robert W. Arnett,
Pasadena, Calif. 91 105 22 Filed: Feb. 13, 1970 21 Appl.No.: 11,206
1030 Stoneridge,
[52] US. Cl ..52/l00, 52/256, 52/257, 52/364, 52/709, 52/710 [51] Int. Cl ..E04b 1/41 [58] Field of Search ..52/58, 60, 61,100, 212, 364, 52/371, 377, 399, 255-257, 709, 710
[56] References Cited UNITED STATES PATENTS 1,386,509 8/1921 Kinnes et al ..52/7l0 1,204,955 11/1916 Day ....52/364 3,015,194 1/1962 Clark.. ....52/371 3,192,557 7/1965 Barn... ....52/364 3,319,384 5/1967 Berg ..52/6l 3,319,985 5/1967 Amett ..52/204 Buh1er..... ..52/7l0 3,387,419 6/1968 Karnberg et al. ...52/255 3,512,318 5/1970 Turner ,.52/lO0 FOREIGN PATENTS QR APPLICATIONS 1,333,580 6/1963 France ..52/710 Primary Examiner-Frank L. Abbott Assistant ExaminerLeslie A. Braun Att0rneyFlam and Flam [57] ABSTRACT An extruded generally T-shaped separator or screed is tacked along the wall base with' the center leg projecting outwardly. Plaster is applied to the wall base to interlock opposite sides of the screed leg. The screed leg is itself hollow, the frontal exposed side being a tear strip finally removed to form a reveal, and the rearward side being bowed or sinuous to form an expansion mechanism. As the plaster expands and contracts transversely to the screed leg, the reveal opens and closes correspondingly without any separation of the leg sides from the respective sections of the cast wall.
1 Clairrs, 4 Drawing Figures EXPANSIBLE REVEAL WITH FRONTAL TEAR STRIP FOR PLASTER WALLS BACKGROUND OF THE INVENTION 1. Field of Invention This invention relates to wall construction, and more particularly, to a screed forming a decorative expansible reveal between adjoining sections of a plaster or other cast wall.
2. Discussion of Prior Art For a variety of reasons, plaster and other cast walls expand and contract to a considerable degree long after the cast wall is cured. A chronic cause is temperature change. Another cause in high structures is flexure due to wind loading. Seismic disturbances are acute causes. Irregular cracks can be minimized by dividing the cast wall into sections as by the use of divider members such as a strip or a channel. But in this instance, an unsightly slit may open between the side of the divider member itself and the side edge of the cast wall. Expansion of the cast wall may not be properly tolerated by such separator strips.
A neat joint between the side of the divider member and the abutting surface of the cast material is difficult to achieve. The plaster or other material tends to splash over the divider member.
To achieve a neat finished appearance when a solid strip is used as the divider member, the divider member should be wiped clean before the splashed over material cures, because removal after curing results in pulling away patches of the plaster on the finish side. This, of course, is tedious and thus economically unsound.
If a channel is used as the divider member, sharp edges at the channel sides may provide a sufficient discontinuity to prevent any bonded juncture between the splashed over material and the plaster on the finish side. However, the channel will have to be cleaned later with consequent penalty as to Cost.
Another solution is to apply masking tape over the solid separator or channel separator. This usually results in pulling patches of material from the finished side. Applying the tape is also time consuming.
BRIEF SUMMARY OF THE INVENTION v The primary object of this invention is to provide a simple screed that forms a decorative expansible reveal free of the foregoing disadvantages. For this purpose, I provide an extruded separator or screed of hollow generally rectangular configuration. The front wall is joined to the side walls by thin fracture webs. The webs are so located as to form small sharp V-grooves, the webs being located at the troughs of the grooves with the side edges of the front wall forming the inner sides of the V-grooves and the side walls of the screed forming the outer sides of the V-grooves. The front wall forms a tear strip removed after the plaster is set. A clean reveal remains. Any splashed over plaster entering the V-grooves is neatly broken away as the tear strip is removed. Attaching flanges form lateral extensions of the rear wall of the screed. The rear wall is curved, sinuous, or otherwise non-linearly formed to allow the side walls to move toward and away from each other as the cast wall expands and contracts.
BRIEF DESCRIPTION OF THE DRAMNGS A detailed description of the invention will be made with reference to the accompanying drawings. These drawings, unless described as diagrammatic or unless otherwise indicated, are to scale.
FIG. 1 is a pictorial view of a length of an extruded separator or screed incorporating the present invention.
FIG. 2 is a view similar to FIG. 1 but showing the separator installed.
FIG. 3 is a sectional view taken along a plane corresponding to line 3-3 of FIG. 2.
FIG. 4 is a sectional view similar to FIG. 3 but illustrating a separator having a difierent reveal size.
DETAILED DESCRIPTION The following detailed description is of the best presently contemplated modes of carrying out the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention since the scope of the invention is best defined by the appended claims. Structural and operational characteristics attributed to fonns of the invention first described shall also be attributed to forms later described, unless such characteristics are obviously inapplicable or unless specific exception is made.
The separator or screed shown in FIG. 1 is a one-piece extrusion of generally T-shaped configuration. A wide variety of plastics or other materials may be used. Preferably the plastic is flexible and soft enough to permit it to be'readily cut to length and to be nailed in place. Polyvinyl chloride fulfills the requirements.
The center leg of the T-shaped separator is itself a hollow four-sided structure, there being opposite parallel side walls 10 and 12, a front wall 14 and a rear wall 16. Extending laterally from the comers at the rear wall are attaching flanges 18 and 20. These flanges may be tacked to the lath W or other wall base upon which plaster or other cementious material is intended to be cast. Holes 24 for the tacks may be provided if desired.
The side walls 10 and 12 are designed to form edging for the opposed ends of the plaster slabs or wall sections A and B cast on the wall W. The outer ends of the side walls 10 and 12 are inwardly beveled as at 22 and 23 so that the ends of the walls 10 and 12 terminate at sharp edges. The ends of the front wall 14 are similarly inwardly beveled as at 26 and 28. Accordingly, frontally facing shallow V- shaped grooves 30 and 32 are formed.
The front wall 14 is substantially flush with the edges of the side walls. The thickness of the front wall 14 only very slightly exceeds the depth of the V- grooves 30 and 32; the front wall is thus joined to the side walls 10 and 12 only by a thin fracture web.
The wet plaster is applied to the wall W with a thickness equal to the dimension of the separator side walls 10 and 12. The separator forms a ground along or across which a feather edge may be moved. Laterally extending interlock flanges 36 and 38 extend outwardly from the side walls 10 and 12 to provide a firm connection.
Some of the plaster material may enter the V- grooves 30 and 32. This excess will then be joined, if at all, to the main body of the plaster sections A and B only by an extremely thin readily frangible web. After the plaster is set, the front wall 14 is torn away as indicated by the arrow 40 (FIG. 2). Any material in the V- grooves 30 and 32 is clearly carried away with the tear strip or front wall 14. A neat, clean reveal accordingly remains.
Upon expansion and contraction of the slabs A and B, the side walls 10 and 12 move correspondingly, being anchored to the respective slabs by the T- head interlock flanges 36 and 38. This movement further is ensured by the inwardly arched configuration of the rear wall 16. No unsightly crack develops between the side walls 10 and 12 and the corresponding surfaces of the plaster material.
In the form shown in FIG. 4 a similar arrangement is provided in which the screed has different proportions. In this instance, the reveal is wider. Hence, the degree of bowing of the rear wall need not be so great to allow the same expansion.
I claim:
1. In a wall structure including a support and a pair of separate slabs of plaster-like material cast in situ on said support, the combination therewith of a unitary elongated expansible hollow separator between said slabs:
a. said separator having a front wall, a rear wall and opposite side walls;
b. said rear wall including a pair of planar flanges for attaching said separator to said support with said front wall facing outwardly, said flanges respectively extending slabs'are formed, said fracture webs being defined by inwardly beveled outer ends of said side walls, said front wall being substantially flush with said side wall outer edges so that upon removal of said front wall said separator is exposed only at the region of its hollow interior; and
. each said side wall being provided with an anchor means disposed intermediate said front and rear walls and extending laterally outwardly from that side wall, the outer end of each anchor being a T-head locking the side wall to its associated slab for conjoint movement therewith.

Claims (1)

1. In a wall structure including a support and a pair of separate slabs of plaster-like material cast in situ on said support, the combination therewith of a unitary elongated expansible hollow separator between said slabs: a. said separator having a front wall, a rear wall and opposite side walls; b. said rear wall including a pair of planar flanges for attaching said separator to said support with said front wall facing outwardly, said flanges respectively extending laterally in opposite directions, said side walls serving as screeds to establish the thickness of said slabs; c. the center portion of said rear wall being inwardly arched to allow movement of said side walls toward and away from each other in response to expansion and contraction of said separate slabs; d. said front wall being joined to the side walls by fracture webs of thinner cross-section than said front wall whereby said front wall forms a tear strip removable after said slabs are formed, said fracture webs being defined by inwardly beveled outer ends of said side walls, said front wall being substantially flush with said side wall outer edges so that upon removal of said front wall said separator is exposed only at the region of its hollow interior; and e. each said side wall being provided with an anchor means disposed intermediate said front and rear walls and extending laterally outwardly from that side wall, the outer end of each anchor being a T-head locking the side wall to its associated slab for conjoint movement therewith.
US11206A 1970-02-13 1970-02-13 Expansible reveal with frontal tear strip for plaster walls Expired - Lifetime US3667174A (en)

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Cited By (55)

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US3903587A (en) * 1973-07-20 1975-09-09 Boiardi Products Corp Method of installing a divider strip in a terrazzo floor
US3906692A (en) * 1973-07-20 1975-09-23 Boiardi Products Corp Divider strip and method of using
US4532740A (en) * 1983-04-29 1985-08-06 Siegfried Fricker Anchoring track with removable filler body
US4651488A (en) * 1986-02-03 1987-03-24 Nicholas John D Expansion joint for plaster walls
US4719724A (en) * 1984-07-19 1988-01-19 A-Lok Products, Inc. Precast concrete manhole adjustable bolt slot assembly for securing cast iron frame and cover
EP0263928A1 (en) * 1986-10-08 1988-04-20 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Insulation of joints for thermally insulating vacuum elements
US4742655A (en) * 1985-03-29 1988-05-10 Kabe Industrier Ab Device in concrete structures
US4825612A (en) * 1987-07-06 1989-05-02 Fry Reglet Corporation Reveal molding and trim structure
WO1990003749A1 (en) * 1988-10-04 1990-04-19 Usg Interiors, Inc. Horizontally oriented demountable partition system
US4952104A (en) * 1988-04-27 1990-08-28 Hideharu Osada Method of finishing the surface of a structure
US5063720A (en) * 1990-04-30 1991-11-12 Vinyl Corporation PVC unit assembly joints
US5423154A (en) * 1993-01-25 1995-06-13 Alabama Metal Industries Corporation Banding Bead
WO1996014484A1 (en) * 1994-11-07 1996-05-17 J & K Fassadenprofi Gmbh Façade component
WO2000042273A1 (en) * 1999-01-12 2000-07-20 Moser, Norman Method for producing façade joints and profile to implement said method
EP1022406A3 (en) * 1999-01-22 2000-10-18 August Braun Plastic plaster bead
US6609341B2 (en) 2000-11-28 2003-08-26 Alabama Metal Industries Corp. Contoured stucco reveal
US20040035075A1 (en) * 2002-08-23 2004-02-26 Trout John T. Joint materials and configurations
US6751919B2 (en) * 1999-07-19 2004-06-22 Jorge Gabrielli Zacharias Calixto Sealing element for expansion joints
US20060150553A1 (en) * 2005-01-13 2006-07-13 Erenio Reyes Control joint
US20070039281A1 (en) * 2005-08-08 2007-02-22 Sergio Zambelli Anchoring insert for embedding in a concrete component and concrete component provided therewith
US20070062137A1 (en) * 2005-09-16 2007-03-22 Vinyl Corp. Screed joints
US20070130861A1 (en) * 2005-12-02 2007-06-14 Gary Chenier Movement control screed
US20080197576A1 (en) * 2007-02-15 2008-08-21 Trout John T Joint Materials and Configurations
US20080307730A1 (en) * 2007-06-18 2008-12-18 Barry Rutherford Channel screed with fastening clips
US20120080431A1 (en) * 2010-10-04 2012-04-05 Hilti Aktiengesellschaft Anchor rail with pull strip
US20120204511A1 (en) * 2011-02-10 2012-08-16 Hiroshi Ito Construction structure of wall surface
US20130202348A1 (en) * 2011-08-04 2013-08-08 Jerry Jensen Universal joint system
US8615944B2 (en) * 2001-09-17 2013-12-31 E-Z Bead Llc Stop bead for separating stucco material from a frame of a window or door
WO2014023821A1 (en) * 2012-08-10 2014-02-13 Protektorwerk Florenz Maisch Gmbh & Co. Kg Profiled element
US20150033649A1 (en) * 2013-08-02 2015-02-05 Jpcm Llc Deck drainage systems
US20150082738A1 (en) * 2013-09-20 2015-03-26 Manhattan American Terrazzo Strip Company Inc. Joint strip and terrazzo surface using an improved joint strip
US9062453B1 (en) 2013-03-15 2015-06-23 E-Z Bead Llc Expansion/control joint for stucco surfaces
US20160237689A1 (en) * 2011-10-14 2016-08-18 Emseal Joint Systems Ltd. Flexible expansion joint seal
US20160340908A1 (en) * 2015-05-22 2016-11-24 Clarkwestern Dietrich Building Systems Llc Casing bead with a removable leg and method of constructing a wall structure
US9976674B2 (en) * 2016-05-13 2018-05-22 Thomas & Betts International Llc Concrete insert channel assembly
US10017936B1 (en) * 2010-11-24 2018-07-10 Innovations & Ideas, Llc Casing bead control joint
US20180195272A1 (en) * 2017-01-10 2018-07-12 E-Z Bead, Llc Expansion/control joint for stucco surfaces and related systems and methods
US20180202168A1 (en) * 2017-01-13 2018-07-19 Fry Reglet Corporation Column cover reveal
WO2018233734A1 (en) * 2017-06-22 2018-12-27 Stefan Petry Quick plaster profile
US10494818B2 (en) 2016-10-25 2019-12-03 E-Z Bead, Llc Vented stop bead apparatus, vented weep screed apparatus, and related systems and methods thereof
US10590662B2 (en) 2016-09-06 2020-03-17 Jim Peterson Deck drainage systems
US20200141108A1 (en) * 2018-11-05 2020-05-07 Pablo Remo Mazzola Vernengo Extruded shape inlaid into a concrete mass, for the construction of balcony railings and dividing panels
US10648184B2 (en) 2017-09-22 2020-05-12 E-Z Bead, Llc Stop bead for panel-based siding, and related methods and systems
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US11180922B2 (en) 2019-12-13 2021-11-23 E-Z Bead, Llc Bead stop for a wall having in interior cement board layer
USD943776S1 (en) 2019-01-04 2022-02-15 Alabama Metal Industries Corporation Caulk bead for fiber cement device
US11486150B2 (en) 2016-12-20 2022-11-01 Clarkwestern Dietrich Building Systems Llc Finishing accessory with backing strip
USD973913S1 (en) 2018-11-27 2022-12-27 Alabama Metal Industries Corporation Below top of wall ventilation screed device
US11629503B2 (en) 2019-12-13 2023-04-18 E-Z Bead, Llc Bead stop for a wall having interior cement board layer
US11885138B2 (en) 2020-11-12 2024-01-30 Clarkwestern Dietrich Building Systems Llc Control joint
USD1022258S1 (en) 2019-07-11 2024-04-09 Alabama Metal Industries Corporation Vented finish bead
USD1026252S1 (en) 2020-11-12 2024-05-07 Clarkwestern Dietrich Building Systems Llc Control joint
USD1028290S1 (en) 2021-12-23 2024-05-21 Alabama Metal Industries Corporation Bead apparatus
US12000153B2 (en) 2020-12-28 2024-06-04 Alabama Metal Industries Corporation Casing bead apparatus
USD1033680S1 (en) 2020-11-13 2024-07-02 Alabama Metal Industries Corporation Self-adhering bead device

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US1386509A (en) * 1919-05-19 1921-08-02 Edwin W Kirmes Insert for concrete construction
US3015194A (en) * 1955-06-06 1962-01-02 Penn Metal Company Inc Building construction and expansion joint therefor
FR1333580A (en) * 1961-10-13 1963-07-26 Anchor profile suitable for embedding in concrete and similar purposes
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US3319985A (en) * 1963-11-18 1967-05-16 Fry Reglet Corp Reglet
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Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906692A (en) * 1973-07-20 1975-09-23 Boiardi Products Corp Divider strip and method of using
US3903587A (en) * 1973-07-20 1975-09-09 Boiardi Products Corp Method of installing a divider strip in a terrazzo floor
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