US2947017A - Wallboard joint finishing tool - Google Patents

Wallboard joint finishing tool Download PDF

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Publication number
US2947017A
US2947017A US755592A US75559258A US2947017A US 2947017 A US2947017 A US 2947017A US 755592 A US755592 A US 755592A US 75559258 A US75559258 A US 75559258A US 2947017 A US2947017 A US 2947017A
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United States
Prior art keywords
blade
finishing tool
joint
wallboard joint
joint finishing
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Expired - Lifetime
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US755592A
Inventor
Dybdahl Frank
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Individual
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Individual
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Priority to US755592A priority Critical patent/US2947017A/en
Application granted granted Critical
Publication of US2947017A publication Critical patent/US2947017A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • E04F21/1652—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers for smoothing and shaping joint compound to a desired contour

Definitions

  • Vnovel means whereby a smooth, uniform crowned joint 5
  • the flange 9 is integral with the smoothing blade or with feathered edges may be expeditiously produced with unskilled or semi-skilled labor.
  • Another important object of the present invention 1s to provide a wallboard joint finishing tool of the character described comprising a scraping blade and a smoothing blade or shoe, wherein said smoothing blade or shoe may be readily adjusted as desired.
  • Figure 1 is a View in front elevation of a finishing to'ol co'nstructed in accordance with the present invention, showing the device in use;
  • Figure 2 isga view in horizontal section through the wall structure, showing the tool in bottom plan
  • Figure 3 is a sectional view, taken substantially on the line 3-3 of Figure 2.
  • the embodiment of the invention which has been illustrated comprises a scraping blade 4 of suitable metal, which blade may also be of any desired dimensions.
  • the blade 4 terminates in angularly bent, downwardly diver gent end portions 5 providing handles having secured on one of the longitudinal edges thereof grips 6 of substantially U-shaped cross-section. Between the end portions 5 thereof, the blade 4 is provided withV a concave scraping edge 7.
  • shoe 8 and ⁇ extends at right angles therefrom.
  • Slots v11 in the flange 9 receive the bolts 10 and permit adjustment of the blade 8 on the blade 4.
  • the mud Vorv mastic 12 is applied to the work, as indicatedat 13, in the usual manner.
  • the blade 4 is then engaged transversely with the Work in a manner to bridge the joint, the operator holding the grips 6 in the hands.
  • the device is then drawn over the work substantially in the manner o'f a drawknife, the concave scraping edge 7 of the blade 4 uniformly distributing the mastic in addition to crowning and feathering the joint. Excess mastic accumulates on the blade 4.
  • the arcuate trailing blade 8 smoothes the joint.
  • the angularly extending end portions 5 of the -blader 4 ride on the work on opposite sides of the joint and stabilize said blade, preventing the same fro'm rocking, etc.
  • the smoothing bladeor shoe 8 may be adjusted as desired relative to the scraping edge 7.
  • a wallboard joint finishing tool comprising: a blade engageable transversely with the joint 'and including a concave arcuate, bottom scraping edge, said blade further including angularly extending, forwardly divergent end portions providing operating handles and operable on the wall on opposite sides of the joint fo'r stabilizing said blade, an arcuate smoothing ⁇ shoe for the joint ⁇
  • a blade engageable transversely with the joint 'and including a concave arcuate, bottom scraping edge said blade further including angularly extending, forwardly divergent end portions providing operating handles and operable on the wall on opposite sides of the joint fo'r stabilizing said blade, an arcuate smoothing ⁇ shoe for the joint ⁇

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

Description

i f ll:
Aug- 2, l960 F. DYBDAHL 2,947,017
wALLBoARn JOINT FINISHING TooL Filed Aug. 1e, 195e l0 .l 8 aLl/M I I MYH United States Patent() 2,941,011 wALLoARn; JOINT FrNrsrnNG TooL Frank Dybdahi, Rnb., Scottsbluff, Nebr. Filed Aug. 1s, 195s, ser. No. 755,592 1 Claim. (ci. 1sz3s.s)
' Vnovel means whereby a smooth, uniform crowned joint 5 The flange 9 is integral with the smoothing blade or with feathered edges may be expeditiously produced with unskilled or semi-skilled labor.
Another important object of the present invention 1s to provide a wallboard joint finishing tool of the character described comprising a scraping blade and a smoothing blade or shoe, wherein said smoothing blade or shoe may be readily adjusted as desired.
Other objects of the invention are to provide a wallboard joint finishing tool of the aforementioned character which will be comparatively simple in construction, strong, durable, compact,` of light weight and which may be manufactured at low cost.
' These together with otherV objects and `advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which: l
Figure 1 is a View in front elevation of a finishing to'ol co'nstructed in accordance with the present invention, showing the device in use;
Figure 2 isga view in horizontal section through the wall structure, showing the tool in bottom plan; and
Figure 3 is a sectional view, taken substantially on the line 3-3 of Figure 2.
Referring now .to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a scraping blade 4 of suitable metal, which blade may also be of any desired dimensions. The blade 4 terminates in angularly bent, downwardly diver gent end portions 5 providing handles having secured on one of the longitudinal edges thereof grips 6 of substantially U-shaped cross-section. Between the end portions 5 thereof, the blade 4 is provided withV a concave scraping edge 7.
shoe 8 and` extends at right angles therefrom. Slots v11 in the flange 9 receive the bolts 10 and permit adjustment of the blade 8 on the blade 4.
It is thought that the use of the to'ol will be readilyV apparent from a considerationY of the foregoing. Y Briefly, the mud Vorv mastic 12 is applied to the work, as indicatedat 13, in the usual manner. The blade 4 is then engaged transversely with the Work in a manner to bridge the joint, the operator holding the grips 6 in the hands. The device is then drawn over the work substantially in the manner o'f a drawknife, the concave scraping edge 7 of the blade 4 uniformly distributing the mastic in addition to crowning and feathering the joint. Excess mastic accumulates on the blade 4. The arcuate trailing blade 8 smoothes the joint. The angularly extending end portions 5 of the -blader 4 ride on the work on opposite sides of the joint and stabilize said blade, preventing the same fro'm rocking, etc. By loosening the nuts 14 on the bolts 10, the smoothing bladeor shoe 8 may be adjusted as desired relative to the scraping edge 7.
The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is ndt desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may beresorted to falling Within the scope of the invention as claimed.
What is claimed as new is as follows:
A wallboard joint finishing tool comprising: a blade engageable transversely with the joint 'and including a concave arcuate, bottom scraping edge, said blade further including angularly extending, forwardly divergent end portions providing operating handles and operable on the wall on opposite sides of the joint fo'r stabilizing said blade, an arcuate smoothing `shoe for the joint` References Cited in the tile of this patent UNITED STATES PTENTS 1,220,986 Henderson Mar. 27, 1917 1,564,172 BuSCh DCC. 1, 1925 2,301,498 Ames -.r- NOV. 10, 1942 2,693,136
Barnes Nov. 2, 1954
US755592A 1958-08-18 1958-08-18 Wallboard joint finishing tool Expired - Lifetime US2947017A (en)

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US755592A US2947017A (en) 1958-08-18 1958-08-18 Wallboard joint finishing tool

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US2947017A true US2947017A (en) 1960-08-02

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189932A (en) * 1963-03-22 1965-06-22 Central Engineering Company In Street cleaning apparatus
US4129407A (en) * 1977-12-13 1978-12-12 Custom Tool & Die Ltd. Curvature and pressure regulator for trowelling bars of mastic applicator and finishing tools
US4631019A (en) * 1985-11-04 1986-12-23 House Bruce F Combination applicator and shaper for moldable materials
US5611102A (en) * 1995-08-15 1997-03-18 Lesinsky; Michael A. Method and apparatus for applying viscous materials to curved surfaces
US6003192A (en) * 1997-01-09 1999-12-21 Ciminise; Salvatore J. Radius surface trowel
US6729088B2 (en) * 2002-02-05 2004-05-04 Shannon L. Corr Positioning jig for installing molding
US7698774B1 (en) 2005-09-26 2010-04-20 Coon Darren M Apparatus for producing an arcuate blade
US8205289B1 (en) 2004-10-05 2012-06-26 Croft Jeff L Hand tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1220986A (en) * 1916-06-09 1917-03-27 Clinton H Henderson Tamper and templet for concrete work.
US1564172A (en) * 1925-06-18 1925-12-01 Busch Edward Harman Cement trowel
US2301498A (en) * 1941-03-03 1942-11-10 George W Williams Finishing tool
US2693136A (en) * 1949-05-07 1954-11-02 Jesse J Gard Screed for cement surfaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1220986A (en) * 1916-06-09 1917-03-27 Clinton H Henderson Tamper and templet for concrete work.
US1564172A (en) * 1925-06-18 1925-12-01 Busch Edward Harman Cement trowel
US2301498A (en) * 1941-03-03 1942-11-10 George W Williams Finishing tool
US2693136A (en) * 1949-05-07 1954-11-02 Jesse J Gard Screed for cement surfaces

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189932A (en) * 1963-03-22 1965-06-22 Central Engineering Company In Street cleaning apparatus
US4129407A (en) * 1977-12-13 1978-12-12 Custom Tool & Die Ltd. Curvature and pressure regulator for trowelling bars of mastic applicator and finishing tools
US4631019A (en) * 1985-11-04 1986-12-23 House Bruce F Combination applicator and shaper for moldable materials
US5611102A (en) * 1995-08-15 1997-03-18 Lesinsky; Michael A. Method and apparatus for applying viscous materials to curved surfaces
US6003192A (en) * 1997-01-09 1999-12-21 Ciminise; Salvatore J. Radius surface trowel
US6729088B2 (en) * 2002-02-05 2004-05-04 Shannon L. Corr Positioning jig for installing molding
US8205289B1 (en) 2004-10-05 2012-06-26 Croft Jeff L Hand tool
US7698774B1 (en) 2005-09-26 2010-04-20 Coon Darren M Apparatus for producing an arcuate blade

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