US483132A - Mason s hawk - Google Patents

Mason s hawk Download PDF

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Publication number
US483132A
US483132A US483132DA US483132A US 483132 A US483132 A US 483132A US 483132D A US483132D A US 483132DA US 483132 A US483132 A US 483132A
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Prior art keywords
hawk
grooves
kerfs
nut
handle
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Expired - Lifetime
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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
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
    • G05B19/404—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia

Definitions

  • My invention relates to an improvement in masons hawks, the object being to provide a hawk whose top surface will be free from obstructions, always presenting a smooth working surface.
  • a further object is to provide means to prevent the warping of the upper surface of the hawk.
  • Figure l is a sectional view of my improved hawk
  • Fig. 2 is a bottom plan view of the same
  • Fig. 3 is a plan of the metal wedge.
  • A represents a table or hawk proper, made of the desired thickness and provided centrally with a square countersink or recess, as shown at a, said countersink or recess being of sufficient width and depth to receive the nut b, so that it will be rigidly held in place and at the same time flush with the under surface of the hawk.
  • the under side of the hawk or table is provided with two oblique saw-kerfs or grooves c, which latter start at points (I, located at one side of the hawk or table and grad ually converge as they approach the opposite end of the hawk or table. The depth of the cuts will of course depend on the thickness of the hawk or table.
  • the metal wedge B is made to conform to the shape of the space between the oblique sawkerfs or grooves, and is provided with flanged sides, which latter fit into the oblique sawkerfs or grooves c.
  • the handle D is provided centrally with a vertical bore e, through which passes a bolt f, which latter also passes through an opening h, formed in the metal wedge B.
  • the handle D is provided at its outer end with a recess or cavity g, greater in diameter than the bore 2 and forming a continuation thereof for the reception of the head of the bolt f.
  • the lower end of the bolt f is provided with screw-threads, which engage the screw-threads in the nut b for the purpose 5 5 of locking the parts in position.
  • the parts are assembled in the following manner:
  • the nut b is first placed within the opening a.
  • the metal wedge which is cut away at each end, as shown in the drawings, is then sprung into the oblique saw-kerfs or grooves c, which latter when in position held. the nut 1) against displacement.
  • By cutting away a portion of the metal from each end of the Wedge B the same can more readily be sprung into the saw-kerfs than could be accomplished if the cut-away portions were retained.
  • the bolt f is then passed through the opening or bore e in the handle, thence through the hole 7L in the wedge, and the former is then secured in place by screwing the bolt f in the nut b, and when the parts are in the positions as above set forth the handle and table are rigidly held together.
  • the application of the invention is not confined to masons hawks, but is equally applicable to darbies, floats, and to the bottom of tubs.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

(No Model.) 1 1 G. W. BLAY. MASON'S HAWK.
No. 483,132. Patented Sept. 27, 1892.
' UNITED STATES PATENT. GFFICE.
CHARLES lV. BLAY, OF JANESVILLE, XVISCONSIN.
MASONS HAWK.
SPECIFICATION forming part of Letters Patent No. 483,132, dated September 27, 1892.
Application filed January 16, 1892. Serial No. 418,288. (No model.)
To all whom it may concern.-
Be it known that 1, CHARLES W. BLAY, of J anesville, in the county of Rock and State of WVisconsin, have invented certain new and useful Improvements in Masons Hawks; and
I do hereby declare the following to be a full,
clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to an improvement in masons hawks, the object being to provide a hawk whose top surface will be free from obstructions, always presenting a smooth working surface.
A further object is to provide means to prevent the warping of the upper surface of the hawk.
With these ends in view my invention consisis in the parts and combination of parts, as will be more fully described, and pointed out in the claims.
In the accompanying drawings, Figure l is a sectional view of my improved hawk, and Fig. 2 is a bottom plan view of the same. Fig. 3 is a plan of the metal wedge.
A represents a table or hawk proper, made of the desired thickness and provided centrally with a square countersink or recess, as shown at a, said countersink or recess being of sufficient width and depth to receive the nut b, so that it will be rigidly held in place and at the same time flush with the under surface of the hawk. The under side of the hawk or table is provided with two oblique saw-kerfs or grooves c, which latter start at points (I, located at one side of the hawk or table and grad ually converge as they approach the opposite end of the hawk or table. The depth of the cuts will of course depend on the thickness of the hawk or table. The metal wedge B is made to conform to the shape of the space between the oblique sawkerfs or grooves, and is provided with flanged sides, which latter fit into the oblique sawkerfs or grooves c. The handle D is provided centrally with a vertical bore e, through which passes a bolt f, which latter also passes through an opening h, formed in the metal wedge B. The handle D is provided at its outer end with a recess or cavity g, greater in diameter than the bore 2 and forming a continuation thereof for the reception of the head of the bolt f. The lower end of the bolt f is provided with screw-threads, which engage the screw-threads in the nut b for the purpose 5 5 of locking the parts in position.
The parts are assembled in the following manner: The nut b is first placed within the opening a. The metal wedge, which is cut away at each end, as shown in the drawings, is then sprung into the oblique saw-kerfs or grooves c, which latter when in position held. the nut 1) against displacement. By cutting away a portion of the metal from each end of the Wedge B the same can more readily be sprung into the saw-kerfs than could be accomplished if the cut-away portions were retained. The bolt f is then passed through the opening or bore e in the handle, thence through the hole 7L in the wedge, and the former is then secured in place by screwing the bolt f in the nut b, and when the parts are in the positions as above set forth the handle and table are rigidly held together.
The application of the invention is not confined to masons hawks, but is equally applicable to darbies, floats, and to the bottom of tubs.
As it is evident that my invention is susceptible to many forms of securing the han- 8o dle to the hawk or table, I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described; but,
Having fully described my inventiou,what I claim as new, and desire to secure by Letters Patent, is-
r 1. The combination, with a table or other surface provided with converging kerfs or grooves, of a flanged metal wedge the flanges of which are adapted to fit in said kerfs or grooves, substantially as set forth.
2. The combination, with a table or other surface provided with converging kerfs or grooves, of a flanged metal wedge the flanges 9 5 of which are adapted to fit in said kerfs or grooves and a handle secured to said table or other surface, substantially as set forth.
3. In a masons hawk,the combination, with a table having a centrally-located recess on its under side, said table being provided with In testimony whereof I have signed this converging kerfs or grooves, and a nut 10- specification in the presence of two subscrib: cated in said recess, of a flanged metal wedge ing witnesses.
the flanges of which are adapted to fit in said CHARLES W. BLAY. 5 kerfs or grooves, a handle, and a bolt pass- Witnesses:
ing through the handle and engaging the nut, FRANK N. WEBSTER,
substantially as set forth. JOSEPH LoEB.
US483132D Mason s hawk Expired - Lifetime US483132A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771325A (en) * 1953-06-08 1956-11-20 Leigh S Brunson Cement mason's float
USD716122S1 (en) 2008-11-04 2014-10-28 Erin Cole Bingham Mason's hawk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771325A (en) * 1953-06-08 1956-11-20 Leigh S Brunson Cement mason's float
USD716122S1 (en) 2008-11-04 2014-10-28 Erin Cole Bingham Mason's hawk

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