US2582168A

US2582168A - Adjustable column form

Info

Publication number: US2582168A
Application number: US32971A
Authority: US
Inventors: Sato Takeo
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-06-14
Filing date: 1948-06-14
Publication date: 1952-01-08
Anticipated expiration: 1969-01-08

Description

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A'TTD RN EYS Patented Jan. 8, 1 952 ADJUSTABLE COLUMN FORM Takeo Sato, Honolulu, Territory of Hawaii Application June 14, 1948, Serial No. 32,971

8 Claims'.

This invention relates to portable concrete forms of the type adapted to be assembled in the field, removed after use, and reused and in particular adjustableforms for casting concrete columns in place wherein the columns may be square, or rectangular and substantially of any size in cross section, or of any heighth.

The purpose of this invention is to provide portable concrete forms which may readily be set up in thev field and readily removed in which the same parts may be used to form columns of different sizes.

Portable metal forms are necessarily heavy and when used for large and high columns it is diflicult to handle sections of portable forms now in use. With this thought in mind this invention contemplates forms having a plurality of vertically disposed sections in which the sections are formed of comparatively thin metal reinforced at the edges and at points intermediate of the edges with structural shapes so that the weight thereof is reduced to a minimum.

In assembling and dismantling portable concrete forms time is essential and for this reason the usual bolts and nuts are objectionable, and to overcome this object the forms of this invention use studs with slots therethrough and tapered keys that may be driven into the slots and which may readily be removed by tapping. l

In some cases it is also desirable to shore up the lower ends of column forms and with this thought in mind this invention includes snoring blocks with sloping intermediate surfaces and studs and keys for securing sections of the blocks together. l

It is also desirable to provide extensions at the upper ends of column forms for holding wood sections and to accomplish this the invention includes means for attaching uprights to the upper ends of the forms to which boards may be attached.`

The object of this invention is, therefore, to provide a complete portable form for casting concrete columns in position that is relatively flexible in that it may readily be adjusted to diierent sizes and shapes.

Another object of the invention is to provide a portable column form that is adjustableand that may be set up and dismantled in a comparatively short time.

A further object of the invention is to provide y an adjustable portable concrete form which is of a simple and economical construction.

With these and other objects and advantages in view the invention consists of the new and useful combination, construction, and arrangement of parts as hereinafter more fully described, set forth in the claims appended hereto, and disclosed in the accompanying drawings forming part hereof, wherein:

Figure 1 is a view showing a side elevation of a typical form with the attaching elements extending from the sides thereof and with parts broken away.

Figure 2 is a cross section taken on line 2-2 of Figure l showing a typical section through the form with the parts assembled to cast a square column.

Figure 3 is a similar section showing the parts set up to form a rectangular-shaped column.

Figure 4 is a section similar to that shown in Figure 2 showing the parts assembled to form a comparatively small square column.

Figure 5 is a detail showing a front elevation of the attaching bar with other parts omitted.

Figure 6 is a similar view showing the back of the bar.

Figure 7 is a view showing an end elevation of the'bar.

Figure 8 is a perspective View illustrating the attaching bar. y

Figure 9 is a, View illustrating one of the side plates of the form with parts broken away.v

Figure 10 is a sectional plan similar to that shown in Figure 2 with parts broken away, and illustrating extension sections used with they side plates.

Figure 11 is a detail illustrating an angle clip used with the attaching bars.

Figure 12 is a view looking toward Vthe opposite side of the clip.

Figure 13 is a detail illustrating a filler block attached to an end of one of the sections of th form, andrwith parts broken away.

Figure 14 is a section through two of the sections of the form illustrating means for connecting the sections.

Figure 15 is a detail showing one of the connecting studs with a slot therethrough.

Figure 16 is a detail showing a key in a slot in a stud with part or" the stud broken away and shown in section.

Figure 17 is a side elevational View showing the lower end of a column form with parts broken away and illustrating a shoring single wedge at the lower end of a column form.

Figure i8 is a plan View of a column form with part broken away showing the shoring wedge.

Figure 19 is a cross section through the shoring wedge taken on line lll-I9 of Figure 1B.

Figure 20 is a similar section taken on line 'Z0-20 of Figure 18.

Figure 21 is also a similar section taken on line 2I-2I of Figure 18.

Figure 22 is a view showing a front elevation of the upper section of the shoring wedge with parts omitted and parts broken away.

Figure 23 is a similar view showing the lower member of the wedge.

Figure 24 is a view showing a corner of the upper section o the shoring wedge with an adjusting angle bar extending therefrom and with parts broken away.

Figure 25 is a similar view of the lower section of the wedge with parts broken away and parts omitted.

Figure 26 is a perspective view with parts broken away illustrating the relative positions of the upper and lower sections of the shoring single wedge.

Figure 27 is a detail illustrating an extension at the upper end of the form.

Figure 28 is a view showing a side elevation of the upper end of a form showing a plurality of extension members as shown in Figure 27 and with parts broken away.

Figure 29 is a view showing a side elevation of one end of a form with extension members secured thereto by countersunk head studs, and with parts broken away.

Figure 30 is a cross section through one side of a form taken on line -38 of Figure 28.

Figure 3l is a detail illustrating a corner of a side of the form shown in Figure 28 showing an opening to accommodate an extension member.

Figure 32 is a detail illustrating an extension member with clip angles in the ends thereof and with parts broken away.

Referring now to the drawings wherein like reference characters denote corresponding parts the adjustable column form of this invention includes, primarily side plates I8, attaching bars I I, holding plates cr clip angles I2, studs i3, keys I4, shoring wedge sections l5 vand IG, and eX- tension members I1.

The side plates I0 are reinforced by angles 29 and 2| at the sides, T-bars 22 intermediate of the ends, and anges 23 and 24 at the upper and lower ends, respectively. The outwardly extending legs' of the angles 28 and 2| are provided with

stud holes

25 and 26, respectively, and the anges 23 and 24 are provided with

stud holes

21 and 28 and nail holes 29 and 39, respectively.

The width of the side plates I8 corresponds with that of a common column, however, when it is desired to cast larger columns extension plates 3| with

angles

32 and 33 at the sides may be used and the outstanding legs of the angles are provided with stud holes spaced. to correspond with the holes of the angles 2li and 2| so that they may be secured in position by the studs and keys as illustrated in Figure l0.

The attaching bars I I are formed as shown in Figures 5 to 8, inclusive, with a web 34 on one side and

ribs

35, 35 and 31 on the other, and with openings 38 between the ribs and lugs 39 and 48 on a head 4| at one end. As shown in Figures 2, 3, and 4, the head 4| is positioned against the inner surface of the outstanding legs of the angles 2G and 2| with the

lugs

39 and 48 in the holes therein, and the holding plates I2 are positioned against the ribs and outer surfaces of the angles, and these parts are clamped together 'oy the studs I3 and keys I4. The plates i2 are provided with flanges 42 having lugs 43 and studs 44 thereon and the studs 44 are provided with slots 45 to receive the keys I4. The clip angles or plates I2 are also provided with openings 46 that register with the openings 38 in the bars II.

The studs, as shown in Figures 15 and 16, are formed with heads 21 and slots 48 extend through the shank portions thereof which receive the keys I4. In assembling the forms the studs are placed through the holes and the keys are driven into the slots so that the parts are positively secured together, and when taking the forms down it is only necessary to tap the keys on the small ends to release the parts.

Figure 13 illustrates a wood ller or anchoring block 49 at the end of a side plate and the block is secured in place by nails 5I) with the side plate secured thereto by nails 5I, and in Figure 14.- the ilange 24 of one side plate is secured to the flange 23 of another by the studs |3 and keys I4, The side plates may be attached together, or to wood blocks as may be desired.

The shoring wedge elements at the lower end of the column forms are illustrated in Figures 18 to 26, inclusive, wherein the base flange 52 of the lower section I6 is secured to the concrete door 53 by bolts 54, and the section is formed with end ribs 55 and intermediate ribs 56. The upper surfaces of the ribs slope downwardly from the inner walls of the sections and the intermediate ribs 56 are provided with studs 51 that have key openings 58 therein. The upper section I5 is formed with an outwardly extending web 59 and, as illustrated in Figure 22, this section is provided with tabs 60 and 6| on the ends of

webs

62 and 63, respectively, that extend downward over the lower section, and the ends of the tabs are provided with

holes

64 and 65 through which the studs 51 extend. The upper and lower sections are secured together by the studs with the keys I4 therein. The web 59 of the upper section isy also secured to the lower ange 24 of the side plate I0 by studs I3 and keys |4.

The shoring wedge elements are also adjustable with the form and one end of each of the upper sections I5 is provided with an outwardly extending angle bar 66 having stud holes 61 therein, and the angle bars of one section are secured to the adjoining sections by bolts 68 with keys 69, as shown in Figure 18. The inner ends of the angle bars 66 are provided with the anges 10 having lugs 1| thereon that are positioned in openings 12 in the vertical legs of the sections I6 when the parts are assembled. The bolts 58 extend through the holes 61 in the angles 6B and through holes 13 in the

tabs

60 and 14 in the vertical webs 15 of the angles I5. The lower edges of the webs 62 and 53 are inclined to correspond with the upper edges of the

ribs

55 and 56 of the lower section, and the web 53 of the upper section and the base 52 of the lower section are provided with nail holes 16 and 11, respectively.

The forms may also be provided with extension members I1 as shown in Figures 27 to 32, inclusive, and these are formed with angles having stud holes 18 in one leg and nail holes 19 in the other and the ends are provided with clip angles and 8| with stud holes 82 in the sides thereof and holes 83 in the ends. In this design the end flanges 84 of the side plates 85 are provided with openings 85 through which the members |1 eX- tend, and the flanges 81 and 88 at the edges of the side plate are provided with countersunk openings 89 and 90 respectively, to receive the countersunk heads of stud 9| which have slots 92 to receive keys 93, similar to the keys I4. The

stud holes in the intermediate flanges of the side plates are not countersunk as they receive the studs I3 as shown. The extension members may be mounted on the ends of the side plates as shown in Figure 28 with the upper ends secured to a member 94 by screws 95 and boards 96 may be secured thereto with the inner surfaces flush with the inner surface of the side plate 85.

The forms may, therefore be assembled in various combinations to form columns of different shapes and sizes and the parts may readily be set up and also readily dismantled.

It will be understood that other modifications may be made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

1. An adjustable form for concrete columns comprising a plurality of side plates having permanently attached angles on the side edges and flanges at the ends with spaced holes in outstanding legs of the angles and also in the flanges at the ends, removable attaching bars positioned in holes in the outstanding legs of the angles and having openings therein, holding plates with flanged ends positioned against the attaching bars and outstanding legs of angles of adjoining side plates, and studs with keys therethrough clamping the side plates together through the said attaching bars and holding plates.

2. An adjustable form for concrete columns comprising a plurality of rectangular-shaped side plates with flanges at the sides and ends and having openings in the flanges, attaching bars removably mounted on the flanges of the side plates, holding plates with flanged ends positioned against the attaching bars and flanges of adjoining side plates, and studs with keys.

therethrough clamping the side plates together through the said attaching bars and holding plates.

3. An adjustable form for concrete columns comprising a plurality of side plates having permanently attached angles on the side edges, T-bars intermediate of the edges and flanges at the ends with holes in outstanding legs of the angles and also in the flanges, removable attaching bars having lugs positioned in the holes of the outstanding legs of the angles and having ribs thereon with openings between the ribs, holding plates with flanged ends positioned against the attaching bars and outstanding legs of angles of adjoining side plates, studs having heads and slots through the shanks thereof positioned through the holding plates and attaching bars, and tapering keys in the slots of the studs clamping the parts together.

4. Attaching bars for metal concrete forms having side and end plates with flanges having spaced bolt holes therein on the edges, comprising ribbed plates with perpendicularly positioned heads with studs on the heads positioned to register with the bolt holes of the flanges of the side and end plates and having spaced bolt holes between the ribs.

5. Attaching bars for metal concrete forms having side and end plates with flanges having spaced bolt holes therein on the edges, comprising ribbed plates with perpendicularly positioned heads with studs on the heads positioned to register with the bolt holes of the flanges of the side and end plates and having spaced bolt holes between the ribs, and holding plates positioned against the ribs of the said ribbed plates and 6 overlapping flanges of the said side and end plates.

6. In a collapsible and adjustable concrete form, the combination which comprises side plates having flanged ends with angles having outwardly extended perforated flanges secured to the side edges and with longitudinally disposed T-bars permanently secured to the plates and p0- sitioned midway between the angles on the side edges thereof providing an elongated shallow tray with a reinforcing member extended longitudinally through the center, attaching bars having perforated flanges extended at right angles from the sides of said plates, clip angles positioned to connect the angles on the sides of the plates and attaching bars, and bolts securing the said clip angles and attaching bars to the angles on the sides of the plates.

7. In a collapsible and adjustable concrete form, the combination which comprises side plates having flanged ends with angles having outwardly extended perforated flanges secured to the side edges and with longitudinally disposed T-bars permanently secured to the plates and positioned midway between the angles on the side edges thereof providing an elongated shallow tray with a reinforcing member extended longitudinally through the center, attaching bars having mounting plates with studs extended from the sides thereof on one of the ends thereof, said studs positioned to register with the perforations of the flanges secured to the side edges of the plates and said attaching bars having perforated flanges and extended at right angles from the sides of said plates, clip angles positioned to connect the angles on the sides of the plates and attaching bars, and bolts securing the said clip angles and attaching bars to the angles on the sides of the plates.

8. In a collapsible and adjustable concrete form, the combination which comprises side plates having flanged ends with angles having outwardly extended perforated flanges secured to the side edges and with longitudinally disposed T-bars permanently secured to the plates and positioned midway between the angles on the side edges thereof providing an elongated shallow tray with a reinforcing member extended longitudinally through the center, attaching bars T-shape in cross section having webs with perforated ilanges extended from one edge and from both sides of the webs and said flanges having spaced ribs on the surfaces opposite to the surfaces from which the webs extend and also having mounting extensions with studs thereon at one end and said studs positioned to register with perforations of the flanges on the sides of the plates, clip angles positioned to connect the angles on the sides of the plates and attaching bars, and bolts securing the said clip angles and attaching bars to the angles on the sides of the plates.

TAKEO SATO.

REFERENCES CITED The following references are of record ln the ille of this patent:

UNITED STATES PATENTS Number Name Date 779,319 Russell Jan. 3, 1905 975,242 Higgins et al Nov. 8, 1910 1,331,096 Eaches Feb. 17, 1920 1,640,997 Hollister Aug. 30, 1927 2,017,553 Troiel Oct. 15, 1935 2,516,318 Hawes July 25, 1950