US1459889A - Concrete-wall form - Google Patents

Concrete-wall form Download PDF


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US1459889A US51347721A US1459889A US 1459889 A US1459889 A US 1459889A US 51347721 A US51347721 A US 51347721A US 1459889 A US1459889 A US 1459889A
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Glen B Hoag
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Glen B Hoag
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    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/12Tying means; Spacers ; Devices for extracting or inserting wall ties with arms engaging the forms


June 26, 1923.
G. B. HOAG CONCRETE WALL FORM 2 Sheets-Sheet 1 Filed Nov. '7, 1921 INVENITOR.
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June 2 6, 1923. 1,459L889 G. B. HOAG CONCRETE WALL FORM Filed Nov. '2, 1921 I 2 Sheets-Shet 2 7 N Q & N
Patented June 26, 1923.
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Application filed November 7, 1921. .Serial No. 513,477.
To all whom "it may concern:
Be it known that I, GLEN B. HOAG, a citizen of the United States, residing at Fullerton, in the county of Orange and State of California, have invented a new and useful Concreteall Form, of which the following is a specification.
This invention relates to forms of the character employed in the construction of 1 poured concrete walls and an object of the invention is to facilitate the construction ofsuch walls by providing a simple form which is easy to install in place and to remove from the section of wall constructed 1 by its use.
Another object is to provide a unit which can be employed for the construction of a solid wall or can be quickly combined or Certain units are associated for the produc tion of a hollow wall, and one of the units is adapted for the construction of a connecting partition.
Fig. 2 is an enlarged'elevation partly in section on line indicated by 22 Fig. 1. A fragment of a section of hollow wall to which the form is clamped is also shown.
Fig. 3'is a perspective view of a single unit form.
Fig. 1 is a perspective view of a double unit form constructed from two single units of the type shown in Fig. 3.
Referring first to Fig. 3 of the drawings there are provided spaced form plates 5, 6
which are provided, respectively, with up 4x5 wardly extending members 8 that constitute levers. The fulcrum orpivot of the lever 7 is shown at 9 and may be a bolt passing through a pair of straps 10. Also the lever 8 is fulcrumed or pivoted at 11 to the straps 10. The fulcrums are just above the plates. The bolt 9 may be selectively placed in'anyone of a series of holes 12 in the straps 10 so as to effect different spacings of the plates 5, 6 for the construction of difierent thicknesses of walls. The members 7, 8 may be secured to the plates 5, 6 by screws 13, or any other suitable fastening devices.
Near the upper end of the lever 7 is a screw-threaded hole 14 engaged by an adjusting screw 15 which has one end seated in a socket 16 near the upper end of the lever 8 so that, for example, if the screw threads be right hand, turning of the screw 15 to the right will force the upper ends of the levers 7 ,8 away, from one another, and consequently move the lower edges of the plates 5, 6 toward one another in order that said plates may thus be securely clamped upon a section of foundation or previously constructed wall.
Means are provided to temporarily lengthen one side of the form and such means, in this instance, are constructed as follows: The plate 5 is provided with outwardly projecting studs 17 adapted to be de tachably engaged by arms 18 secured by screws 19, or other suitable fastening devices, to a gate or plate-extension 20 which abuts one end of the plate 5 so as to lengthen one It is clearly evident that when it is not deside of the form. The arms 18 are releasably held on the studs 17 by wing nuts 21.
sired to employ the gate 20 it can be removed by taking off the wing nuts 21 and slipping the arms 18 from the studs 17. Itis also evident that different lengths of gates may be employed, according to the requirements of the wall constructor. In this view I have shown only the plate 5 provided with a gate,
but the same construction, obviously, may
be employed for the plate 6, as well, and it is to be understood that the plate 6 is provided with studs 17 which cannot be seen because of the nature of the view.
' The plates 5, 6 may be made of any desired constructed in several different lengths so as length, and the forms will preferably be to facilitate the construction of walls hav ing door and window openings and inter-j secting partitions. For example, a series of form units maybe constructed in lengths of from one to five feet so that wall sections of from one foot long to any other desired length, with openings therein and with partitions intersecting, may be constructed by properly combining the different units.
The plates shown in Fig. 8 may be assumed to be one foot in length and with such length one pair of the levers 7 8 is suificient. With longer plates a greater number of the levers 7,8 and their associated parts will be employed. The construction above de scribed, for convenience, may be termed a single unit form.
Now referring to Fig. 4 of the drawings, it will be observed that this view shows two of the single unit forms slightly modified,
as regards a few of the elements, and positionedside by side to produce a double unit.
But one end gate 20 is shown, and one of the straps 10 of each of the single forms is omitted and in place thereof there is substituted a strap 22 of sufficient length to engage the pivots 9 of both levers 7', said strap '22'bei1ig provided at eachend with a series of holes 23 for selective positioning. of the pivots 9 Also in place of the pivot 11 is substituted a pivot 24 of'sutficient length to pass" through both levers 8, thus adjustably securing said levers to one another. Thus it is clear that either screw 15 may be separately turned to adjust the plates connected therewith independently of the other plates associated with the other levers 7, 8. The plates 5 may be considered as the outer form plates and the plates 6 as the inner form plates and the inner plates constitute a core.
It isto be understood that it is not absolutely necessary to thus connect the single unitstogether in order that they properly function, "but it is advisable to facilitatehandl ing of the forms, placing ofthe forms in position and removing them from the section of wall after proper setting of the concrete. Also the slight modification in some of the elements, as described, is notessential, since two of the forms shown in Fig. 3, may be employed in combination, without change Off the elements, to make a double wall.
It will be observed that in both Figs, 3 and it the levers 7, 8 are positioned nearer one end of the. plates'5, 6.than the other. In fact the center line midway of thelength of the plates 5, 6 cuts exactly through the vertical mid-plane of one of the straps 10 in Fig. 3 and of the strap 22 in Fig. at. p The reason for this construction is that when {two single units are associated to. form a double unlt, as in. Fig. l, theends of the plates 5, Got one single unit are exactly flush with the plates 5, 6 of the other single unit though the respectto the other.
plates of one arereversed with between the outer form plates, but no such dii'liculty presents itself in the employment of this double unit form; i
It is advisable, when employing the two single unit forms as a double unit form, to attach to one of the. plates 6 a cover member or plate 25. This may be done by employing nails 26 or other suitable fastening devices. The plate is secured upon the upper edge of one or the plates 6 and extends over the edge of the other plate 6 so as to cover the space between said plates and prevent the concrete, when beingpoured into the form, from getting between the'plates 6 in the space intended, in the completed wall,
to be entirely free of wall material, lnthe event of it being desired to employ the I double unit form adjacent a door orwindow opening, studding, column, wall tie or an intersecting partition, it is advisable to provide a closure for the end or ends or said forms. F or this purpose an endplate,
27 is secured by nails or other suitable fastenings 28 to one of the ertical edges; of.
one of the plates 6 and projects over the adj acent edge of the other plate 6, Now referring to Figs. 1 and 2 of the drawings, there will be seen in said figures a series of double forms and a .singlejor'm constructed as above described in so far [as the use of the levers 7, 8, straps l0, '22,pivots 9, ll, 24, studs 17, wing nuts. 21,, armslS, and adjusting screws 15 is concerned. ;T11e
(i'orm side plates are longer than those shown in Figures 3 and et,and arev indicated at 29,
30, 31, 32, e3 and'etel. ,The spaces between the plates 30 are covered by a plate 88, and are closed at, their ends by plates 3a; The
spaces between two of the plates32 are closed at their topsby a plate35 andat their ends by plates These Various ,form
alates are associated to ether inv such man ner as to receive concrete between them for constructing apportion of the hollow outside a portion of wall a of a structure and also a partition Z). a n
In using the invention, the, various-forms will be clamped onto the upper marginal portions of the foundation .or previously constructed wall section, as clearly shown in Fig. 2, and end gates will; be provided wherever the particular constructionof the wallrequires. Suchend gates are indicated at 37 adjacent a dooror ,window names,
at 39 to form the outer faces oi a corner studding or column and at 40 to space the adjacent ends of one set of core pIatesBO' from anotherset of core plates so that,the
concrete can flow between the ends of said plates and form a wall tie'c. A gate isalso indicated at llto space one set of plates 30 from a set of plates 32 and to space one or the plates 29 from one of theplates 31 so that one, of the other form plates 43 and an associated plate 4.4 may be placed end wise relative to the space thus made to permit the concrete to form a wall tie d and make the partition 6 continuous with the outside wall;
In making the structure posts will preferably be set at the corners of the structure, one such post being indicated at a2 and the adjacent form plates will abut said post. These posts serve for sup-porting the line usually employed for marking the position of the wall and to insure perpendicularity of the wall with respect to the earth as the Wall increases in height, and also to set the level for openings in the wall.
I claim: I
In a concrete wall form, the combination of two single forms placed side by side and each comprising apair of plates, arms projecting upward from said plates, means between the upper ends of the arms an plates to pivotally connect one of the arms of each pair of plates to the other arm of the pair, and means to adjustably hold the upper ends of the arms of each pair of plates away from each other, the inner plates of the forms'constituting a core for the wall and the arms associated with said inner plates being pivotally connected.
Signed at Los Angeles, California this 1st day of November 1921.
GLEN B. noae.
US51347721 1921-11-07 1921-11-07 Concrete-wall form Expired - Lifetime US1459889A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895208A (en) * 1953-09-24 1959-07-21 Charles M Paxton Concrete wall form
US4630797A (en) * 1985-02-11 1986-12-23 Bomford James A Clamping yoke for concrete forms
FR2611562A1 (en) * 1987-02-25 1988-09-09 Rhein Philippe Device forming a clamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895208A (en) * 1953-09-24 1959-07-21 Charles M Paxton Concrete wall form
US4630797A (en) * 1985-02-11 1986-12-23 Bomford James A Clamping yoke for concrete forms
FR2611562A1 (en) * 1987-02-25 1988-09-09 Rhein Philippe Device forming a clamp

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