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Publication numberUS1089573 A
Publication typeGrant
Publication dateMar 10, 1914
Filing dateNov 5, 1912
Priority dateNov 5, 1912
Publication numberUS 1089573 A, US 1089573A, US-A-1089573, US1089573 A, US1089573A
InventorsEdward Morlae
Original AssigneeEdward Morlae
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of lining shafts with concrete.
US 1089573 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




Patented Mar. 10, 1914.

Infue nor. Edward JMQZZQQ,



Specication of Letters Patent.

Patented Mar. 10, 1914.

Application filed November 5, 1912. Serial No. 729,557.

To all whom it may concern:

Be it known that I, EDWARD MORLAE, a citizen of the United States, residing at San Gabriel, in the co-unty of Los Angeles and State of California, have invented a new and useful Improvement in Methods of Lining Shafts with Concrete, of which the following is a specification.

This invention relates to a method of lining shafts with concrete, and the principal object of the invention is to provide a method to eliminate the building of elaborate retaining walls in a well shaft.

It is also an object to provide a method by which the concrete may be inserted in sections progressively from the top or ground level downward.

In the drawings accompanying this specification Figure l is a central longitudinal section of a shaft showing two of the sections of concrete introduced, and the form in position ready to place the next succeeding section of the lining. Fig. 2 is a cross section on the line 2-2 of Fig. l, viewed in the direction indicated by the arrows. Fig. 3 is a cross section of the shaft on the line 33 o Fig. l, viewed in the direction indicated e arrows. Fig. 4 is a detail section on the line #lc-4. of Fig. 3, viewed in the direction indicated by the arrows.

Heretofore in the lining of shafts with concrete, as far as known to me, the shaft has first been sunk or dug the required depth, requiring' a temporary lining to retain the walls of the shaft intact and prevent caving in upon the operators. Then this supporting lining either has to be removed or becomes a loss by being left in the shaft while the forms are inserted and the lining introduced from the bottom upward, the entrance of water in the lower end of the shaft or intermediate positions complicating this process.

' This invention overcomes the above difliculties by providing a method by which the shaft is inclosed with the permanent lining as the work progresses downward without great delay, and materially reducing the cost, and increasing the efliciency of the structure.

In the drawings numerals are used to designate the same parts in the different views, 5 designating the surface of the ground, and 6 the shaft vertically dug therein by any suitable means or apparatus, the method preferably used being to dig the shaft a depth equal to the hight of the collapsible form preferably used. ln practice this form is about siX feet in length, depending on the character of the soil through which the shaft is being sunk. The section dug is preferably as indicated, in the lower portion of Fig. l, so as to provide the platform 7 of a diameter equal to the diameter of the finished shaft, from this point downwardly and outwardly, being excavated to leave the inclined face 8 until the concentric periphery of the major diameter of the shaft is M 0n this platform 7 the collapsible form l0 is erected, the upper falls slightly below the inner edge ll of a previously formed section. The form l0 is preferably formed of a plurality of vertical sections 12 each of which is provided with a flange le secured thereto at suitable distances, the flanges, when various sections are placed adjacent one another abutting to form the circular configuration or cylinder, upon which flanges are supported the four sections of the rim 15 which are held together by suitable means. as pins 16 the locking plate 17' toof the locking plates 17. One of these sections is necessarily cut away as indicated in dotted lines at 19 so that this section may be removed to allowthe collapse of the form after the concrete has been inserted.

As before stated, the concrete is introduced between the upper edge 20 of the form and the lower inner edge 1l of the previously formed section of the concrete lining which is preferably reinforced by the vertical rods 2l supported in any well known manner. This upper edge 20 preferably extends a slight distance above the lower edge 22 of the last section of the concrete lining.

rThe shaft is preferably dug during the day the required depth, then the process of tamping the concrete lining in place is performed, and the concrete left to cure over night, while the digger is otherwise occud. The concrete sufficiently sets to permit the removal of the forms the next morning, and the shaft is sunk the corresponding distance only limited by the length of the form used. The triangular space Q3 is filled either before the removal of the form and troweled in position, or inserted afterward, as may be found preferable.

and sinking the In an excavation having a lining of this character, the costover usual constructions has been reduced approximately one-half, together with the material increase in speed of construction, and with greater assurances of safety, the irregular' portions of the shaft walls firmly grasping the concrete sections, and preventing sliding as well as the connection to one another by adhesion, or suitable connections between the reinforcing rods.

What l claim is:

1. Al method of lining shafts with vconcrete, consisting in sinking a shaft approximately equal to the depth of the form used, an annular channel being fo-rmed below a flat base for vthe form, inserting the form to rest on'the base, and filling in cement, then removing the form and sinking` the shaft another section and placing the form to fill in belowy the last formed section.

" 2. A method of lining shafts with concrete, VconsistingY in sinking a shaft equal to the depth of a form, inserting the form, and lling lin cement, then' removing the form shaft another section and placing the' 'form to lill in below the last formed section, then facing the inside of the casing intermediate of the flat top of the new section and the inclined edge of the section'next above.

3. A method of lining shafts, which consists in rst excavating a portion of the shaft approximately equal to the height of the form employed, the bottom of the shaft being formed as a truncated cone, the truncation forming a base for the form, then inserting the form of smaller diameter and filling the void between the wall of the shaft vand the form with concrete and allowing the E. MORLAE.


Copies o! this patent may be obtained for nve cents each, by addressing the Commissioner ot Patents,

Washington, '.D. C.

from the top to the bottom

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US5490419 *Jul 27, 1994Feb 13, 1996Total Containment, Inc.Secondary containment system using flexible piping
US7722293Jan 28, 2009May 25, 2010Darin R. KruseMethods for constructing underground structures
US8322949Apr 8, 2010Dec 4, 2012Kruse Darin RSystem for creating underground structures
US8714877 *Nov 1, 2012May 6, 2014Darin R. KruseApparatus and methods for underground structures and construction thereof
US9085872Jun 1, 2012Jul 21, 2015Darin R. KruseLubricated soil mixing system and methods
US20090191003 *Jan 28, 2009Jul 30, 2009Kruse Darin RApparatus and methods for underground structures and construction thereof
US20100189512 *Apr 8, 2010Jul 29, 2010Kruse Darin RApparatus and methods for underground structures and construction thereof
U.S. Classification405/133
Cooperative ClassificationE21D5/12