US2502672A - Form tie and spreader - Google Patents

Form tie and spreader Download PDF

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Publication number
US2502672A
US2502672A US680429A US68042946A US2502672A US 2502672 A US2502672 A US 2502672A US 680429 A US680429 A US 680429A US 68042946 A US68042946 A US 68042946A US 2502672 A US2502672 A US 2502672A
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spreader
tie
bar
holes
spreader bar
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Expired - Lifetime
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US680429A
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Arne G Royther
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
    • E04G17/0657—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts fully recoverable

Definitions

  • Patented Apr. 4, 1950 UNITED STATES PATENT OFFICE FORM TIE AND SPREADER Arne G. Royther, Long Beach, Calif.
  • This invention relates to a novel form tie and spreader in which the spreader bar can be removed from the concrete wall after the concrete has set.
  • An object of my invention is to provide a novel form tie and spreader in which the walls of the form are efiectively held in spaced relation, and also in which the entire form structure is effectively tied together, all of this being accomplished with my tie and spreader in a simple and effective manner.
  • Another object of my invention is to provide a form tie and spreader in which the structure of the tie and spreader is such that leakage will be prevented through the holes which are necessarily cut in the walls of the form.
  • a feature of my invention resides in the simple and effective means whereby the threaded bars can be inserted or removed both quickly and easily by inserting a nail or a pin through appropriate holes in the threaded bar.
  • a further feature of my invention resides in the groove in the spreader member which prevents rotation of this spreader member after the concrete has been poured and has set.
  • Figure l is a'iragmentary, transverse sectional viewof a form structure with my tie and spreader mounted thereon.
  • Figure 2 is a fragmentary side elevation of my form tie and spreader with parts broken away to show interior construction.
  • Figure 3 is an enlarged end view of the spreader bar.
  • Horizontal walers 4 are included as part of the form structure, all of which is usual and well known.
  • the concrete wall or the like 5 is poured between the walls 2 and 3, again in the usual and well known manner.
  • a spreader bar 6 is placed between the walls 2 and 3 before the concrete is poured, and is held in position, as will be further described.
  • the spreader bar 6 is tapered continuously from end to end-that is, it is frustro conical in form. With this structure, the spreader bar can be driven out of the concrete wall 5 after it is set by driving the spreader bar out through the end having the greatest diameter.
  • a groove 7 extends lengthwise of the spreader bar 6, and the purpose of this groove is to prevent rotation of the spreader bar in the concrete wall and after the concrete has set. This is useful when the parts are disassembled, as will be further described.
  • the walls 2 and 3 each have holes 8, 9 drilled therein, and threaded tie rods [0 extend. through these holes and screw into either end of the spreader bar 6 and into the tapped holes H.
  • a shoulder I2 is formed on the tie bar and presses against the outside of the form wall, and also causes the spreader bar to be pulled tightly against this same wall, thus sealing the holes 8 or 9 to prevent leakage,
  • the tie bars l0 extend through the walers 4, and a nut 13 screws onto the outer end of the tie bar and bears against the walers, thus tying the form structure together in a complete and effective manner.
  • Spaced holes [4 and I5 are provided in the tie bar and these holes can receive a nail or a pin, which act as a stop for the nut 13 and enables the tie bar to be threaded into or out of the spreader bar very easily and quickly.
  • a nail or a pin which act as a stop for the nut 13 and enables the tie bar to be threaded into or out of the spreader bar very easily and quickly.
  • a form tie and spreader comprising a solid spreader bar, said spreader bar being tapered from end to end, and having a groove on the surface thereof, said groove extending longitudinally thereof, a tie bar threaded into each end of the spreader bar, and a nut threaded on to each of the tie bars, each of said tie bars including a shoulder thereon spaced from the end of the spreader bar and each tie bar having spaced holes therethrough, a pin fitted into any one of the holes against which the nut bears to thread or unthread the tie bar.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

Aprifi 4 1@@' A, G, RQYTHER 2,5@2,@72
FORM TIE AND SPREADER FiledJune 29, 1946 II III INVENTOR llrne, G. Royzher.
Patented Apr. 4, 1950 UNITED STATES PATENT OFFICE FORM TIE AND SPREADER Arne G. Royther, Long Beach, Calif.
Application June 29, 1946, Serial No. 680,429
1 Claim. 1
This invention relates to a novel form tie and spreader in which the spreader bar can be removed from the concrete wall after the concrete has set.
An object of my invention is to provide a novel form tie and spreader in which the walls of the form are efiectively held in spaced relation, and also in which the entire form structure is effectively tied together, all of this being accomplished with my tie and spreader in a simple and effective manner.
Another object of my invention is to provide a form tie and spreader in which the structure of the tie and spreader is such that leakage will be prevented through the holes which are necessarily cut in the walls of the form.
A feature of my invention resides in the simple and effective means whereby the threaded bars can be inserted or removed both quickly and easily by inserting a nail or a pin through appropriate holes in the threaded bar.
A further feature of my invention resides in the groove in the spreader member which prevents rotation of this spreader member after the concrete has been poured and has set.
Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description, and the appended claim.
In the drawing:
Figure l is a'iragmentary, transverse sectional viewof a form structure with my tie and spreader mounted thereon.
Figure 2 is a fragmentary side elevation of my form tie and spreader with parts broken away to show interior construction.
Figure 3 is an enlarged end view of the spreader bar.
Referring more particularly to the drawing, the
- concrete form I consists of spaced walls 2 and 3,
which are usually formed of wood. Horizontal walers 4 are included as part of the form structure, all of which is usual and well known. The concrete wall or the like 5 is poured between the walls 2 and 3, again in the usual and well known manner.
A spreader bar 6 is placed between the walls 2 and 3 before the concrete is poured, and is held in position, as will be further described. The spreader bar 6 is tapered continuously from end to end-that is, it is frustro conical in form. With this structure, the spreader bar can be driven out of the concrete wall 5 after it is set by driving the spreader bar out through the end having the greatest diameter. A groove 7 extends lengthwise of the spreader bar 6, and the purpose of this groove is to prevent rotation of the spreader bar in the concrete wall and after the concrete has set. This is useful when the parts are disassembled, as will be further described.
The walls 2 and 3 each have holes 8, 9 drilled therein, and threaded tie rods [0 extend. through these holes and screw into either end of the spreader bar 6 and into the tapped holes H. A shoulder I2 is formed on the tie bar and presses against the outside of the form wall, and also causes the spreader bar to be pulled tightly against this same wall, thus sealing the holes 8 or 9 to prevent leakage, The tie bars l0 extend through the walers 4, and a nut 13 screws onto the outer end of the tie bar and bears against the walers, thus tying the form structure together in a complete and effective manner.
Spaced holes [4 and I5 are provided in the tie bar and these holes can receive a nail or a pin, which act as a stop for the nut 13 and enables the tie bar to be threaded into or out of the spreader bar very easily and quickly. When the tie bars are removed, it is important that the spreader bar shall not rotate, and it is at this time that the groove 7 is of importance in that the spreader bar is thus prevented from rotating.
Having described my invention, I claim:
A form tie and spreader comprising a solid spreader bar, said spreader bar being tapered from end to end, and having a groove on the surface thereof, said groove extending longitudinally thereof, a tie bar threaded into each end of the spreader bar, and a nut threaded on to each of the tie bars, each of said tie bars including a shoulder thereon spaced from the end of the spreader bar and each tie bar having spaced holes therethrough, a pin fitted into any one of the holes against which the nut bears to thread or unthread the tie bar.
ARNE G. ROYTHER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,309,084 Zimmerman July 8, 1919 1,723,631 Pollock et al Aug. 6, 1929 1,782,897 Hudgin Nov. 25, 1930 1,938,153 Reeves Dec. 5, 1933 2,162,869 Symons June 20, 1939 2,168,990 Hungerford Aug. 8, 1939 2,190,748 Williams Feb. 20, 1940
US680429A 1946-06-29 1946-06-29 Form tie and spreader Expired - Lifetime US2502672A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746365A (en) * 1951-11-16 1956-05-22 Joseph A Darneille Road construction
DE1288779B (en) * 1964-08-28 1969-02-06 Klaiss Hans Dieter Device for the mutual tensioning and spacing of two formwork walls placed opposite one another
US3648961A (en) * 1970-04-30 1972-03-14 William H Farrow Wall tie for concrete forms
US3905093A (en) * 1970-07-30 1975-09-16 Chester I Williams Method of erecting wall-form
US4044986A (en) * 1975-05-12 1977-08-30 Strickland Systems Inc. Concrete form panel tying apparatus
US4109893A (en) * 1975-07-22 1978-08-29 Laroche Jean Pierre Form panel spacing device
US4915346A (en) * 1989-01-03 1990-04-10 Burdett Harold D Spacers for use in forming modular buildings
FR2759106A1 (en) * 1997-01-31 1998-08-07 Sols Et Fondations Concrete cavity wall construction procedure
US20030071189A1 (en) * 2001-10-17 2003-04-17 Bert Petkau Method and apparatus for erecting forms for concrete pours
US20100013134A1 (en) * 2006-09-15 2010-01-21 Srb Construction Technologies Pty Ltd Magnetic clamp assembly
US20100213657A1 (en) * 2006-09-18 2010-08-26 Srb Construction Technologies Pty Ltd Magnetic clamp
CN105064685A (en) * 2015-08-11 2015-11-18 云南建工第四建设有限公司 Recyclable inner-bracing sleeve
US20200032532A1 (en) * 2017-04-06 2020-01-30 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US10683671B2 (en) * 2017-04-06 2020-06-16 Ulma C Y E, S. Coop. Vertical formwork with tie rod and tie rod anchor
US11047144B2 (en) * 2017-04-06 2021-06-29 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309084A (en) * 1919-07-08 Spacing bab ob core fob plastic work
US1723631A (en) * 1927-08-05 1929-08-06 John A Pollock Mechanism for concrete construction
US1782897A (en) * 1929-05-31 1930-11-25 Samuel E Lingle Form clamp
US1938153A (en) * 1931-03-30 1933-12-05 Lerritt A Reeves Tie-rod for concrete construction
US2162869A (en) * 1937-04-23 1939-06-20 Symons Clamp & Mfg Company Form structure for concrete walls
US2168990A (en) * 1935-07-24 1939-08-08 Star Expansion Bolt Company Form tie
US2190748A (en) * 1937-01-13 1940-02-20 Chester I Williams Securing device for concrete forms

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309084A (en) * 1919-07-08 Spacing bab ob core fob plastic work
US1723631A (en) * 1927-08-05 1929-08-06 John A Pollock Mechanism for concrete construction
US1782897A (en) * 1929-05-31 1930-11-25 Samuel E Lingle Form clamp
US1938153A (en) * 1931-03-30 1933-12-05 Lerritt A Reeves Tie-rod for concrete construction
US2168990A (en) * 1935-07-24 1939-08-08 Star Expansion Bolt Company Form tie
US2190748A (en) * 1937-01-13 1940-02-20 Chester I Williams Securing device for concrete forms
US2162869A (en) * 1937-04-23 1939-06-20 Symons Clamp & Mfg Company Form structure for concrete walls

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746365A (en) * 1951-11-16 1956-05-22 Joseph A Darneille Road construction
DE1288779B (en) * 1964-08-28 1969-02-06 Klaiss Hans Dieter Device for the mutual tensioning and spacing of two formwork walls placed opposite one another
US3648961A (en) * 1970-04-30 1972-03-14 William H Farrow Wall tie for concrete forms
US3905093A (en) * 1970-07-30 1975-09-16 Chester I Williams Method of erecting wall-form
US4044986A (en) * 1975-05-12 1977-08-30 Strickland Systems Inc. Concrete form panel tying apparatus
US4109893A (en) * 1975-07-22 1978-08-29 Laroche Jean Pierre Form panel spacing device
US4915346A (en) * 1989-01-03 1990-04-10 Burdett Harold D Spacers for use in forming modular buildings
FR2759106A1 (en) * 1997-01-31 1998-08-07 Sols Et Fondations Concrete cavity wall construction procedure
US20030071189A1 (en) * 2001-10-17 2003-04-17 Bert Petkau Method and apparatus for erecting forms for concrete pours
US6837473B2 (en) 2001-10-17 2005-01-04 Bert Petkau Method and apparatus for erecting forms for concrete pours
US20100013134A1 (en) * 2006-09-15 2010-01-21 Srb Construction Technologies Pty Ltd Magnetic clamp assembly
US8702079B2 (en) * 2006-09-15 2014-04-22 Srb Construction Technologies Pty Ltd Magnetic clamp assembly
US20100213657A1 (en) * 2006-09-18 2010-08-26 Srb Construction Technologies Pty Ltd Magnetic clamp
US8544830B2 (en) 2006-09-18 2013-10-01 Srb Construction Technologies Pty Ltd Magnetic clamp
CN105064685A (en) * 2015-08-11 2015-11-18 云南建工第四建设有限公司 Recyclable inner-bracing sleeve
US20200032532A1 (en) * 2017-04-06 2020-01-30 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US10683671B2 (en) * 2017-04-06 2020-06-16 Ulma C Y E, S. Coop. Vertical formwork with tie rod and tie rod anchor
US10808413B2 (en) * 2017-04-06 2020-10-20 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work
US11047144B2 (en) * 2017-04-06 2021-06-29 Ulma C Y E, S. Coop. Vertical formwork and an anchor for a vertical form work

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