US1190740A - Concrete-wall mold. - Google Patents

Description

C. O. ELLERT.

CONCRETE WALL MOLD.

APPLICATION FILED JvULYl. 19H. RENEWED DEC. 17.19l5.

l 9 l QUQ. Patented July 1l, 1916.

ATTORNEYS By M,

C4 0. ELLERT.

CONCRETE WALL MOLD.

APPLICATION FILED JULY I. I9II- IIENEWED DEC-A II, 1915.

Patented July 1'1, 1916.

2 SHEETS-SHEET 2 ATTORNEYS 4 o i /fu w//// v mf S 9 /f ///////////////Hrr 0 f w WM L I 9 L W WEAR@ FAENT F@E.

CHARLES O. ELLERT, 0F NEW YORK, 1\T. Y.

CONCRETE-VITALI. lvIOLD.

LIMWZI.

Application filed July 1, 1911, Serial No. 636,363.

To all whom t may concern Be it known that I, Cnannns 0. ELLnnT, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a. new and Improved Concrete-Wall Mold, of which the following is a full, clear, and exact description.

My invention relates to molds for plastics and comprehends a construction especially adapted for use with concrete.

The object of my invention is to provide a new and improved construction of the class described in which the form boards may be quickly and easily withdrawn from the concrete which has set thereby providing for further use of these boards in otherplaces.

A further object of the invention is to provide a construction involving the use of standards, fillers, and mold boards, together with suitable fastening means, characterized by the fact that any particular mold board may be returned to the exact position which it occupied relatively to the standards after the mold has been dismantled; such returning of the mold board to such original position is frequently necessary because the hardened wall may be more or less damaged through withdrawal of the mold boards therefrom. In such case the ease and accuracy of replacement of the mold board is valuable in that in repairing the wall the identical mold board may be returned to identical former position.

A further object of my invention is the provision of a new and useful combination of elements which form a mold for concrete, the elements being of a standard construction, whereby a mold of knock-down character is provided which is adapted for use repeatedly; suchl a mold is adapted to perform efficient service and the cost of concrete construction is reduced because the parts being capable of repeated use and being similar in conformation a lo-w first cost is made possible.

The usual method of building concrete walls is about as follows: A mold of the desired cross-sectional form is made up of boards and standards, these parts being secured together. The concrete is poured therein and when hard the mold is knocked to pieces; the greater part of the material used in making the mold is generally unfit for further similar use as the mold is pulled Specification of Letters Patent.

Patented July 11, M1916.

Renewed December 17, 1915. Serial No. 67,487.

down indiscriminately. In my construction, however, I propose to provide a mold which is made up of units, each unit performing a distinct function and each being of the same dimensions as other similar units; by such formation ofthe parts a wall may be started and when portions become set, the moldmay be removed and built on to other portions of the mold thereby providing for continuous construction. It is to be noted that the use of such a mold will decrease the cost of building concrete structures since the same mold parts may be used over again, and only enough parts need be obtained to provide for a certain amount of work, since as the pouring continues, portions of the mold will be dismantled and put to use in another place.

Particularly, the invention comprises a mold made up of standards, form boards, and shims, together with various securing devices for keeping the parts in position for use. Another element which I have termed a spreader is also made use o fl in order to properly space the standards, this spreader being carried by the standards and being adapted to support and properly space the reinforcing rods within the mold.

Referenceis to be had to the accompanying drawings, lconstituting a part of this specification, in which similar characters of reference denote corresponding parts in all the views and in which Figure 1 is a side view of a mold in accordance with my invention; Fig. 2 is a vertical sectional view thereof on the line 2 2 of Fig. l; Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. l; Fig. 4 is an enlarged'vertical sectional view along the line H of Fig. 1. l .Y Y

The vertical standards 1 which may be of any suitable size and length are eachprovided with a series of vertically alined openings 2, 3,- 4; any desired number of similarly constructed form boards y5 are positioned adjacent one side of each standard l, the fillers or shims 6 being placed between each standard and the form boards, the parts being removably held together by means to be presently described. The width of the form boards may be as desired and the thickness thereof will be determined by the character of the work; there is a distinct relation, however, between the thickness of the fillers and the thickness of the form boards,` which is, that the llers are at 'Cil least as thick, and preferably thicker, than l haps three form boards.

. The means for securing the form'boards andiillers to the standard substantially as follows: Each form board adjacent each end, and the distances therefrom in all. the boards being substantially equal, is provided with arrecess 7, and within each recess is a transversely extending pin 8 secured in any Y suitable manner, one form being shown as y screws 9, in Fig. 8. A securing device comprisingiabolt l0,.hav ing aV threaded end 11 for engagementwith a handlednut 12, is

made use of,ithe bolt 10 having a hooked end 13 for engagement with the pin. 8 withinV the recess 7.V Each securing device is adapted to be inserted within any one of V11 of each bolt projects beyond the standard 1 thereby providing for manipulation of the handled nut 12 in order to securely hold the form board positioned on the standard with v the shim or Vfiller between-them; the openings'2, 4 in the standard are of greater length `than width in'order to permit easy withdrawal and adiustment of the bolt 10, there being a-strap 15 positioned on each bolt and adapted to extend across the opening 2, 4 in order to provide a seat for the handled nut 12 when tightened.

As shown particularly in Fig. 3, each filler or shim 6 isy also provided with openings 16, 17 of'substantially the same size and spaced apart a distance equal to that between the openings 2,4 in the standard; it will thus be noted that when the parts are in normal position the openings, 4, 16, and the recess 7 in vthe end of the forni board are in register thereby making operation of the fastening device 10, 12 easy.

Each filler V6 adjacenteach end, is provided with a suitable re`cess'19 having a pin 2Ol extending thereacross, -theY purpose of 'which'is tov provideY a means for engagement with a suitable tool in order to withdrawrthe filler; for the same reason, each form board 5 atan intermediate portion, is provided with a recess 21 having a Apin 22 eX- tending thereacross. VIt may be noted'here that none V,of the recesses 7 at either end of a form board, northe intermediate recess 21,

`extend entirely therethrough. Such a feature Vprovides a smooth and unbroken surboards.

Y face to theoppositeside of each one of these f Thev description thus far has had to do withone side only ofthe mold; Fig. 2 illustrates the relation of the parts. when the mold is complete and ready foi' use; of course, it is to be understood that the length of a complete mold may be as desired. greater length being obtained by merely setting up a plurality of standards spaced from each other and securing the form boards and lillers thereto; the idea involved comprehends this feature, that the adjacent ends of form boards 5 lying in the same plane are at a substantially centra-l line of the standard 1, as shown particularly in Fig. 3. The sides of the mold are spaced apart the required distance by any suitable means, the following being vthe preferred form; the lower spacing means is a tie rod 30 having threadv41 may pass; these means may be in the same line or may be staggered thus holding the rods in upright position. The part 40 is secured in position by means of channels 42 secured thereto, each channel having ends 43 adapted'v to abut the inner sides of the standards 1 and be held in such position by means of fastening devices 12 extending through any one of the middle line of openings 3; the handled nut of each fastening device is similar to those previously described. l

The use and operation of my device may be described in connection with Fig. 2; the standards l are set in upright position, being secured in such position by suitable braces -if so desired; the tie rods 30 engaging opposite standards holds them properly spaced at the bottoni while the spreader 40 -stiffens and spaces the top, the spreader also supporting the reinforcing rods 41. The fillers and forni boards are then secured to the standards, the meeting ends of adjucent boards coming closely together in order to provide for al smooth finish to the liardeiied concrete. rl`he plastic is then poured Vinto the mold to a suitable height, the tie rods 30 being left in position therein to hold the standards in position, the withdrawal of the rods being effected easily at a later time. As the pouring continues and the top of the standards is reached, the

`spreader 40 is removed and another standing ends, and after more fillers and form boards are secured in position the pouring may continue; when the concrete first poured has become set the form boards may be withdrawn for use in another place in the following manner. By loosening the handled nuts 12 and removing the bolts 10, the Iillers and form boards are in position for removal, but will not fall out of place, because of the pressure of the hardened concrete. The fillers are withdrawn by inserting a suitable tool into engagement with the pin 2O carried thereby; when the fillers are removed there `is an open space between the inner side of the standards and the outside of the form boards equal to the thickness of the fillers, which it is to be noted, as has been previously set out, is equal to the thickness of each form board. Each form board may be pulled away from the hardened concrete by engaging the pin 22 thereon with a suitable tool, the form board then moving out adjacent the standards and into the space formerly occupied Vby the fillers; the form boards may now be removed, and, it is to be noted without disturbing the standards, by moving it bodily in a longitudinal direction under the standards until one end of the board clears one standard, when moving the board in an opposite longitudinal direction will carry the other end thereof away from the other standard. The form board may now be carried to any other point of the work and again placed in position for forming mold. 1When the form boards have been removed the hardened concrete wall is exposed, the building of the mold, however, continuing and being not dependent on the mold structure where the concrete has set.

lllhen the form boards have been thus removed the standards are still in position; they may be left in' such position, if so desired, in order to form supporting means for the standards above; such practice is not necessary, however, as each standard with its fillers and form boards may stand by itself as shown particularly in Fig. 2, where A represents the top of a hardened mass, or al foundation, or equivalent oonstruction.

If the standards have been left in position, any particular mold board may be returned to the identical position which it occupies relatively to the wall and the standard during the formation of the wall; it may be that in removing the mold boards, the outside of the wall may have been damaged, in which event it becomes necessary to return the mold board to position, and the ease with which the same mold board may be .returned to the same position is apparent from the adjustability of the fastening devices which hold the form boards to the standards.

lt is readily seen that in molds as heretofore constructed, using blocks or fillers superimposed between the standard and mold boards, each of the blocks supports the weight of the blocks above it, and removal of any one of the blocks is attended with considerable diiiiculty and displacement to the blocks above same.

lt must be understood that my improved spacing block is so constructed as to periit its attachment and registering with any of the openings provided for this purpose in the standard, totally independent of any other block, and as a plurality of fastening devices pass through each individual spacing blocl: it is readily seen that it is immovable when the standard, registering spacing block and mold board are firmly united as individual units by the fastening devices. This enables a collapsible mold to be constructed of members each mutually strengthening the other, with the result of constructing a mold having a more accurate interchange of parts than heretofore attained.

The particular form of fillers illustrated is capable of wide variation; the idea embodied in their use is to provide a means between each standard and the form boards which is removable in order to permit easy and quick removal of the boards. Each filler maybe provided with a plurality of threaded lugs extending from one side and entering suitable openings in the standard, each lug being provided with nuts or equivalent devices in order to permit the filler to be adjust-ed at any desired distance from the standard, the filler being movable toward the standard and out of engagement with the form board in order to provide the open space hercinbefore mentioned for removal of the board. Such a structure is adapted to perform the functions of the particular form which l have illustrated.

Uf course it is to be understood that while l have defined certain of the parts in this specification by certain terms that such terms are descriptive only, any other means performing the same function being within the spirit of the invention; the fillers or shims may be variedvvidely in their' construction in adapting them to dierent molds, the spirit of the invention, however, residing in an element fulfilling the purpose even although not properly called such.

From the above description taken in connection with the accompanying drawings, it is apparent that I have disclosed a structure fulfilling the objects of the invention as set forth in the beginning of this specification. The particular size, shape and relative positioning of the parts is capable of modification, the resulting structure however, being comprehended Within the spirit and scope of the appended claims.

Having thus described my invention, I claimV as new and desire to secure by Letters Patent: Y

. V1. A concrete Wall mold comprising uprights provided with perforations; mold sections; integral holding means positioned in proximity to the abutting ends of the mold sections, removable fastening means adapted Yto engage said uprights andY said integral holding means; and perforated spacing members positioned .intermediate said uprightsand Vsaid mold sections in a manner topermit the perforations in said spacing members to register with the perforations inV said uprights and with said integral holding means to permit the positioningrof said fastening ineans,rsaid fastening means Vpassing through openings in the spacing members. Y

Q. A. concrete Wall mold comprising up- Y rights'pro'vided vwith alined perforations;

moldsections provided With integral hold-V Ving means in proximity to their abutting Copies of this patent may be obtained for 3. In combination a concrete wall mold comprising spaced uprights provided with openings; mold sections provided with integral holding means in proximity to their 35 abutting ends; spacing members provided f with means to register with said openings in said uprights; and means engaging said iiitegral holding means and said uprights to secure the elements, said fastening means 4o passing through the opening in the spacing members.

4. In combination, a concrete Wall mold comprising spaced uprights having their body portions intermediate their edges pro- 45 vided with perforations; mold sections having one of their faces provided with integral holding means; spacing members provided ivith perforations to register with said perforations in said uprights; and i'e- 50 movable fastening means passing through said perforations iii said uprights and said spacing members and engaging said integral holding means in said mold sections.

In testimony whereof I have signed my 55 naine to this specification in the presence of tivo subscribing Witnesses.

CHARLES O. ELLERT.

Witnesses:

PHILIP D. RoLLHAUs, LAURENCE J. GALLAGHER.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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