US3579802A - Method for insulating boiler or like housing wall - Google Patents

Method for insulating boiler or like housing wall Download PDF

Info

Publication number
US3579802A
US3579802A US780322A US3579802DA US3579802A US 3579802 A US3579802 A US 3579802A US 780322 A US780322 A US 780322A US 3579802D A US3579802D A US 3579802DA US 3579802 A US3579802 A US 3579802A
Authority
US
United States
Prior art keywords
wall
stud
studs
web portion
metalwork
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
US780322A
Inventor
Frank R Gajovski
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3579802A publication Critical patent/US3579802A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0832—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements
    • E04F13/0833—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable
    • E04F13/0835—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable the fastening elements extending into the back side of the covering elements
    • E04F13/0837—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable the fastening elements extending into the back side of the covering elements extending completely through the covering elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/04—Supports for linings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49833—Punching, piercing or reaming part by surface of second part
    • Y10T29/49835—Punching, piercing or reaming part by surface of second part with shaping
    • Y10T29/49837—Punching, piercing or reaming part by surface of second part with shaping of first part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49879—Spaced wall tube or receptacle

Definitions

  • a channel-shaped strip of thin metal is supported to press a web portion thereof against the reduced ends of each said row of studs, while a mallet or other impacting tool is progressively struck against the web at the several points of contact thereof with cutting edges of the studs, first the punch holes through the web, and then to form or peen heads on the reduced portions for retaining the strip against the annular shoulders.
  • a plurality of said channel strips attached in this manner, in parallelism'to each other, may be used to support protective metal sheeting to outer flanges of the exposed webs of the channel strips, as by means of self-threading screws.
  • a general object of the invention is to provide an improved method and means for covering a boiler or like wall with insulating and finishing materials with a substantial reduction in time, labor, and material as compared with known prior art methods.
  • FIG. 1 is a fragmentary horizontal cross section through a boiler or like wall, illustrating an initial step in the method by which special studs are welded to the wall, a metal strip being shown, by chain-dotted lines, in position for attachment to the studs.
  • FIG. 2 is a fragmentary front elevation of the wall as shown in FIG. 1.
  • FIG. 3 is an enlarged vertical cross section, taken substantially on the line 3-3 of FIG. 2, but showing the metal strip in full lines, and held against a cutting edge on a reduced portion of a stud.
  • FIG. 4 is a fragmentary view corresponding to a portion of FIG. 3, and on the same scale, illustrating the metal strip pierced by the cutting edge of a stud, and held against a shoulder thereon by a retaining head formed on the reduced portion of the stud.
  • FIG. 5 is a fragmentary front elevation as viewed from the right of FIG. 4, and on the same scale.
  • FIGS. 1 to 5 of the drawings generally, and to FIGS. 4 and 5 in particular, there is illustrated one application of the method and means of the present invention, as for insuseveral respects. and
  • a boiler wall 10 lating a boiler wall 10 with a layer 11 of molded or loose insulating material.
  • layer 11 is a molded insulating material it may be retained against the wall 10 by a plurality of thin-webbed, channel-shaped, metal strips 12, 12, each affixed to a row of spaced metal studs 13, 13 rigidly attached to metal wall 10.
  • the strips 12, as best shown in FIG. 4 are adaptable for attaching corrugated metal or other protective sheeting C thereto, as by means of self-threading screws S (see chaindotted lines in FIG. 4).
  • each stud 13 may comprise a length of metal rod stock which is flat at one end 15, and has a reduced neck portion 16 at the other end, defining an annular shoulder 17.
  • the outer end of reduced portion 16 may be recessed or concaved at 18, as shown in FIG. 3, to define a sharp peripheral cutting edge 19, for purposes to be described.
  • an insulating layer 11 of uniform thickness may be retained flatwise against the wall, as shown in FIG. 1, after a plurality of studs 13 have been welded to the wall 10, in known manner, to extend normal to the wall.
  • a suitable welding tool may be applied over the reduced end 16 of each respective stud, and operated to pass a requisite electrical charge through and the stud to weld the flat end 15, thereof to the wall 10. Rows of spaced studs 13 are thus welded to the wall to have the annular shoulders 17 thereof uniformly spaced from the wall, to be substantially flush with the outer surface of the required insulating layer 11, as shown in FIG. 1.
  • the insulated area can be protected, as by a facing of decorative sheeting C, such as corrugated metal, secured to the strips 12 by self-threading screws S (see chain-dotted lines in FIG. 4).
  • a method for securing thin-webbed metalwork to an existing metal wall surface comprising: the steps of affixing to said wall surface a plurality of studs, each having a reduced free end portion defining a peripheral shoulder to be in spaced relation to the wall surface when the other end of the respective stud is secured thereto, and the outer end of said end portion being recessed to define peripheral cutting edge; supporting the metalwork to engage said thin web portion thereof against said cutting edge of each stud; and impacting said engaged web portion against the cutting edge of each stud; first to pierce and project the reduced portion thereof through the corresponding web portion, and then to peen the respective projected free end portion against the web portion, thereby to form heads on the respective studs for securing the web portion to the peripheral shoulder of the studs; and securing a facing of sheet material to said metalwork to form an enclosure between said wall and said facing sheet.
  • each said stud being affixed to said wall surface by applying a welding charge therethrough while said other end of the stud is held against said wall, to weld the stud thereto.
  • a method as in claim 2 including retaining a filler of insulating material between the secured said web portions and said wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

Method and means for securing thin-webbed metalwork on boiler or like housing wall, as for retaining insulation and/or finishing sheeting thereon. Studs may have inner ends welded to housing wall by use of a stud welder. Areas of metalwork strip impacted against reduced ends of studs to punch through web, and further impaction forms heads to retain metalwork against peripheral shoulders defined by reduced ends.

Description

United States Patent Inventor [72] Frank R. Gajovski 41 12 Swain Drive, Barberton, Ohio 44203 [21 1 Appl. No. 780,322 [22] Filed Dec. 2,1968 [45 Patented May 25, 1971 [54] METHOD FOR INSULATING BOILER 0R LIKE HOUSING WALL 5 Claims, 5 Drawing Figs. 52] U.S. C1 29/4322, 29/455, 52/261, 287/189.35 [51] Int. Cl 823p 11/00 [50] Fiel of Search 29/432, 432.2, 455; 287/l89.35; 52/261 [5 6] References Cited UNITED STATES PATENTS 3,022,687 2/1962 Richards (29/432UX) for retaining insulation and/or finishing sheeting thereon. Studs may have inner BACKGROUND OF INVENTION SUMMARYOF INVENTION The method of the present invention has particular utility for retaining insulating material against a boiler wall, and includes weldingrows of spaced metal studs on the wall to extend normal thereto, the studs having reduced outer ends defining annular shoulders adapted to be in given spaced relation to the wall, and said reduced outer ends being recessed to define a peripheral cutting edge. A channel-shaped strip of thin metal is supported to press a web portion thereof against the reduced ends of each said row of studs, while a mallet or other impacting tool is progressively struck against the web at the several points of contact thereof with cutting edges of the studs, first the punch holes through the web, and then to form or peen heads on the reduced portions for retaining the strip against the annular shoulders. A plurality of said channel strips attached in this manner, in parallelism'to each other, may be used to support protective metal sheeting to outer flanges of the exposed webs of the channel strips, as by means of self-threading screws.
A general object of the invention is to provide an improved method and means for covering a boiler or like wall with insulating and finishing materials with a substantial reduction in time, labor, and material as compared with known prior art methods.
Other objects of the invention will be manifest from the following brief description and the accompanying drawings.
' Of the accompanying drawings:
FIG. 1 is a fragmentary horizontal cross section through a boiler or like wall, illustrating an initial step in the method by which special studs are welded to the wall, a metal strip being shown, by chain-dotted lines, in position for attachment to the studs.
FIG. 2 is a fragmentary front elevation of the wall as shown in FIG. 1.
FIG. 3 is an enlarged vertical cross section, taken substantially on the line 3-3 of FIG. 2, but showing the metal strip in full lines, and held against a cutting edge on a reduced portion of a stud.
FIG. 4 is a fragmentary view corresponding to a portion of FIG. 3, and on the same scale, illustrating the metal strip pierced by the cutting edge of a stud, and held against a shoulder thereon by a retaining head formed on the reduced portion of the stud.
FIG. 5 is a fragmentary front elevation as viewed from the right of FIG. 4, and on the same scale.
Referring to FIGS. 1 to 5 of the drawings, generally, and to FIGS. 4 and 5 in particular, there is illustrated one application of the method and means of the present invention, as for insuseveral respects. and
lating a boiler wall 10 with a layer 11 of molded or loose insulating material. Where the layer 11 is a molded insulating material it may be retained against the wall 10 by a plurality of thin-webbed, channel-shaped, metal strips 12, 12, each affixed to a row of spaced metal studs 13, 13 rigidly attached to metal wall 10. The strips 12, as best shown in FIG. 4, are adaptable for attaching corrugated metal or other protective sheeting C thereto, as by means of self-threading screws S (see chaindotted lines in FIG. 4).
Referring to FIG. 3, each stud 13 may comprise a length of metal rod stock which is flat at one end 15, and has a reduced neck portion 16 at the other end, defining an annular shoulder 17. The outer end of reduced portion 16 may be recessed or concaved at 18, as shown in FIG. 3, to define a sharp peripheral cutting edge 19, for purposes to be described.
In use of the method of the invention for insulating a boiler wall 10, for example, an insulating layer 11 of uniform thickness may be retained flatwise against the wall, as shown in FIG. 1, after a plurality of studs 13 have been welded to the wall 10, in known manner, to extend normal to the wall. As an example, a suitable welding tool may be applied over the reduced end 16 of each respective stud, and operated to pass a requisite electrical charge through and the stud to weld the flat end 15, thereof to the wall 10. Rows of spaced studs 13 are thus welded to the wall to have the annular shoulders 17 thereof uniformly spaced from the wall, to be substantially flush with the outer surface of the required insulating layer 11, as shown in FIG. 1.
Next, while a thin-webbed, metal channel strip 12 is held against the cutting edges 19 of a row of aligned studs 13, the web 21 of the channel strip is impacted by a mallet or other tool, at areas opposite each respective stud, first to punch a hole in the web 21, so that the strip can be forced inward of each location, to full engagement of the web with the annular shoulder 17 of the respective stud, and then with further impaction against the respective protruding stud portion with a suitable impaction tool, a head 22 is formed, as shown in FIGS. 4 and 5, firmly to secure the strip 12 against stop shoulder 17. i
With a plurality of said channel strips 12 suitably mounted in parallelism to hold the insulation 11 against wall 10, the insulated area can be protected, as by a facing of decorative sheeting C, such as corrugated metal, secured to the strips 12 by self-threading screws S (see chain-dotted lines in FIG. 4).
Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.
lclaim:
1. A method for securing thin-webbed metalwork to an existing metal wall surface comprising: the steps of affixing to said wall surface a plurality of studs, each having a reduced free end portion defining a peripheral shoulder to be in spaced relation to the wall surface when the other end of the respective stud is secured thereto, and the outer end of said end portion being recessed to define peripheral cutting edge; supporting the metalwork to engage said thin web portion thereof against said cutting edge of each stud; and impacting said engaged web portion against the cutting edge of each stud; first to pierce and project the reduced portion thereof through the corresponding web portion, and then to peen the respective projected free end portion against the web portion, thereby to form heads on the respective studs for securing the web portion to the peripheral shoulder of the studs; and securing a facing of sheet material to said metalwork to form an enclosure between said wall and said facing sheet.
2. A method as in claim 1, each said stud being affixed to said wall surface by applying a welding charge therethrough while said other end of the stud is held against said wall, to weld the stud thereto.
3. A method as in claim 2, including retaining a filler of insulating material between the secured said web portions and said wall.
4. A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.
5. A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.

Claims (5)

1. A method for securing thin-webbed metalwork to an existing metal wall surface comprising: the steps of affixing to said wall surface a plurality of studs, each having a reduced free end portion defining a peripheral shoulder to be in spaced relation to the wall surface when the other end of the respective stud is secured thereto, and the outer end of said end portion being recessed to define peripheral cutting edge; supporting the metalwork to engage said thin web portion thereof against said cutting edge of each stud; and impacting said engaged web portion against the cutting edge of each stud; first to pierce and project the reduced portion thereof through the corresponding web portion, and then to peen the respective projected free end portion against the web portion, thereby to form heads on the respective studs for securing the web portion to the peripheral shoulder of the studs; and securing a facing of sheet material to said metalwork to form an enclosure between said wall and said facing sheet.
2. A method as in claim 1, eaCh said stud being affixed to said wall surface by applying a welding charge therethrough while said other end of the stud is held against said wall, to weld the stud thereto.
3. A method as in claim 2, including retaining a filler of insulating material between the secured said web portions and said wall.
4. A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.
5. A method as in claim 1, including retaining a filler of insulating material between the secured said web portion and said wall.
US780322A 1968-12-02 1968-12-02 Method for insulating boiler or like housing wall Expired - Lifetime US3579802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78032268A 1968-12-02 1968-12-02

Publications (1)

Publication Number Publication Date
US3579802A true US3579802A (en) 1971-05-25

Family

ID=25119270

Family Applications (1)

Application Number Title Priority Date Filing Date
US780322A Expired - Lifetime US3579802A (en) 1968-12-02 1968-12-02 Method for insulating boiler or like housing wall

Country Status (1)

Country Link
US (1) US3579802A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846902A (en) * 1972-04-21 1974-11-12 Gorham Method of mounting a handle to a vessel
US3861022A (en) * 1972-09-27 1975-01-21 Linde Ag Method of making insulated ducts
US3903582A (en) * 1973-06-07 1975-09-09 Usm Corp Multiple segment fastener and method
US3909907A (en) * 1974-04-01 1975-10-07 Carborundum Co Method for installing furnace linings
US4406048A (en) * 1979-04-05 1983-09-27 William Bailey Method of assembling ladder construction
US4459073A (en) * 1980-02-02 1984-07-10 Multifastener Corporation Fasteners with piercing and riveting performance
US4555838A (en) * 1983-03-28 1985-12-03 Multifastener Corp. Method of installing self-attaching fasteners
US4911592A (en) * 1980-02-02 1990-03-27 Multifastener Corporation Method of installation and installation apparatus
FR2779785A1 (en) * 1998-06-15 1999-12-17 Allibert Ind Covering fixing process on to a sheet metal or plastic support
US20040016470A1 (en) * 2002-07-25 2004-01-29 Royal Group Technologies Limited Duct wrap securing system
BE1018314A5 (en) * 2009-04-06 2010-08-03 Girten Gerard System for fixing insulation material so as to keep an empty air both sides thereof.
US20110278275A1 (en) * 2008-12-19 2011-11-17 Newfrey Llc Arc welding method and arc welding apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245611A (en) * 1938-05-07 1941-06-17 Frederick W Schultz Building construction
US2282293A (en) * 1941-04-21 1942-05-05 Christenson Frank Heat insulating lining
US2663270A (en) * 1949-05-25 1953-12-22 Gregory Ind Inc Composite stud
US2737267A (en) * 1951-04-11 1956-03-06 Int Steel Co Building construction
US2993110A (en) * 1958-02-17 1961-07-18 Nelson Stud Welding Division O Corrosion inhibiting component for metal construction and method of using same
US3022687A (en) * 1953-11-20 1962-02-27 Arthur J Richards Method of riveting
US3147832A (en) * 1959-12-16 1964-09-08 Detroit Stud Welding & Mfg Cor Mounting means and tool therefor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245611A (en) * 1938-05-07 1941-06-17 Frederick W Schultz Building construction
US2282293A (en) * 1941-04-21 1942-05-05 Christenson Frank Heat insulating lining
US2663270A (en) * 1949-05-25 1953-12-22 Gregory Ind Inc Composite stud
US2737267A (en) * 1951-04-11 1956-03-06 Int Steel Co Building construction
US3022687A (en) * 1953-11-20 1962-02-27 Arthur J Richards Method of riveting
US2993110A (en) * 1958-02-17 1961-07-18 Nelson Stud Welding Division O Corrosion inhibiting component for metal construction and method of using same
US3147832A (en) * 1959-12-16 1964-09-08 Detroit Stud Welding & Mfg Cor Mounting means and tool therefor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846902A (en) * 1972-04-21 1974-11-12 Gorham Method of mounting a handle to a vessel
US3861022A (en) * 1972-09-27 1975-01-21 Linde Ag Method of making insulated ducts
US3903582A (en) * 1973-06-07 1975-09-09 Usm Corp Multiple segment fastener and method
US3909907A (en) * 1974-04-01 1975-10-07 Carborundum Co Method for installing furnace linings
US4406048A (en) * 1979-04-05 1983-09-27 William Bailey Method of assembling ladder construction
US4543701A (en) * 1980-02-02 1985-10-01 Multifastener Corporation Method of attaching a fastener to a panel
US4459073A (en) * 1980-02-02 1984-07-10 Multifastener Corporation Fasteners with piercing and riveting performance
US4911592A (en) * 1980-02-02 1990-03-27 Multifastener Corporation Method of installation and installation apparatus
US4555838A (en) * 1983-03-28 1985-12-03 Multifastener Corp. Method of installing self-attaching fasteners
FR2779785A1 (en) * 1998-06-15 1999-12-17 Allibert Ind Covering fixing process on to a sheet metal or plastic support
US20040016470A1 (en) * 2002-07-25 2004-01-29 Royal Group Technologies Limited Duct wrap securing system
US6755218B2 (en) * 2002-07-25 2004-06-29 Royal Group Technologies Limited Duct wrap securing system
US20110278275A1 (en) * 2008-12-19 2011-11-17 Newfrey Llc Arc welding method and arc welding apparatus
BE1018314A5 (en) * 2009-04-06 2010-08-03 Girten Gerard System for fixing insulation material so as to keep an empty air both sides thereof.

Similar Documents

Publication Publication Date Title
US3579802A (en) Method for insulating boiler or like housing wall
US2961210A (en) Fastening assembly
US2517411A (en) Fastener for refrigerant evaporator
US2339841A (en) Wall structure and fastener
US3754367A (en) Plaster casing bead
NZ197507A (en) Slidable clip:method of panelling using clips,reentrant flanged channels,and t & g boards
US4297823A (en) Hollow wall repair device
ES548481A0 (en) AN APPARATUS FOR INSTALLING A FASTENER PROVIDED WITH A STAMPING AND RIVETING PART ON A SHEET, PANEL OR SIMILAR
US2317015A (en) Fastening means for metal panels
DE8013284U1 (en) Fastening clamp for attaching door panel clips or the like. on unperforated cover plates made of hard fiber
US1655406A (en) Fcjkring stbip
US4027413A (en) Clip for retaining a canvas stretcher frame in a decorative picture frame
US2337239A (en) Finishing panel mounting means
US7572978B1 (en) Electrical outlet box assembly system
US1389587A (en) Clamp
US3147832A (en) Mounting means and tool therefor
US5794394A (en) Anchor bolt centering device
US2863195A (en) Fastener
US3184191A (en) Electrical outlet box holder
US2993110A (en) Corrosion inhibiting component for metal construction and method of using same
US2176846A (en) Clinch-on nut
US3956839A (en) Frame and a device for securing display panels in said frame
US4402124A (en) Method of pressure locking an aperatured nut into a die-side hole of a metal plate
US2804321A (en) Means for supporting articles on wall panels
US2137883A (en) Trim panel and fastener