US1667252A - Tib rob - Google Patents

Description

April 24, 1928.

2 Sheets-Sheet 1 (My; 5. Ha y M4 TIE ROD J. B. HAWLEY, JR

Original Filed Sept. 2', 1924 April 24. 1928. 1,667,252

J. B.- HAWLEY, JR

TIE ROD Original Filed Sept. 2. 1924 2 Sheets-Sheet 2 m i v .lll l H Patented Apr. 24, 19281 UNITED STATES PATENT OFFICE.

l JOHN B. HAWLEY, JR, F MINNEAPOLIS, .MINNESOTA.

TIE non.

Original application filed September 2, 1924, Serial No. 735,247. Divided and this application flled March 13, 1926.

vices hereinafter described and defined in.

the claims.

The present application 1s filed as a divlsi on i of my pending application Serial Number 735,247 which issued as Patent #1,586,991

and which application is directedto the improved method or process of apply ng and using tie rods in erecting concrete structures. Simplicity of construction, efficiency in use and rapidity and ease of manipulation,both in the application of the rods to the concrete forms andfthe removal thereof from the forms and the wall, are the main objects of the invention. To accomplish these objects, and more particularly the last noted, requires that the tie rods be capable of application to the forms entirely from the exterior thereof and without requiring any manual manipulation applied between the walls of the forms.

In accomplishing the above objects and other important but minor objects I provide .a tie rod that is made up of three main sections or elements, to wit: two end sections and an intermediate section; the end sections being of greater diameter than the intermediate section. The end sections are externally threaded at their outer ends and in- 3 indicated is of simple construction and in use has highly desirable features as will hereinafter appear more fully after having first described the invention as illustrated in the accompanying drawings wherein like characters indicate like parts throughout the several views. a a

Referring to the drawings: I Fig. 1 is a fragmentary perspective showing a portion of a concrete wall form and a ortion of a monolithic concrete wall formed etweeii the same;

ternally threaded at their innerends while Serial No. 94,422.

Fig. 2 is a fragmentary vertical section taken on the line 22 of Fig. 1;"

Fig. 3 is a fragmentary view in section on the same line as Fig. 2, but showing only one side of the form, a portion of the concrete wall, and one end of the tie rod, the sections thereof being separated and some parts being shown in full;

Fig. 4 is a plan view of the tie rod in condition to be applied in working position through the walls of the concrete form; and

Fig. 5 is a fragmentary section taken on the same line as Fig. 2 but showing only a portion of .the concrete wallwith the form removed and with the central or intermediate section of the tie'rod left in the wall.

Of the parts of the improvedtie rod, the numeral 6 indicates the end sections, the outer ends of which are externally threaded at 7 and the inner ends of which are internally threaded M8, and preferably also internally beveled at 9. Nuts 10 and preferably alsowashers 11 are applicableto the threaded outer ends of the sections 6. The intermediate 'or central section 12 is.of,cori siderably lessdiameter than the end sections 6 and the threaded ends 13 thereof are adapted to be freely screwed into the internally threaded ends 8 of said sections 6.

In'Fig. 3 there is shown a tool in the f0rmof an internally threaded socket lethat is adapted to be screwed onto theouter end of either section 6 and is provided with an annular outer end shank 15, and the purpose of which tool will be hereinafter noted.

The concrete form, which is of the usual or any suitable construction, is, as shown,

made up of wall-forming boards a. vertical beams b andhorizontal beams c. The concrete Wallis indicated by the character 51' These walls are. of course, to be properly spaced by the tie bolts: thatis, by the tie bolts they will be properlyheld against separation and thetie bolts will take the strain of the slushedin concrete.

Atpoints where the tie rods are to be applied the wall boards a and beams 12 and c are formed with aligned holes or passages d that are preferably only slightly greater in diameter than the outer rod sections 6.

The intermediate or central rod section 12 should be somewhat shorter, say about two inches shorter. than the thickness of thewall to be formed so that in the termed wall the ends willnot project from the surface of the wall andhence willnot have to he cut off.

Before the rods are applied to the form, the sections 6 and 12 thereof should be screwed together substantially as shown in Fig. 4 with the threaded ends 13 of said section 12 seated far enough into the intery -nally threaded ends of the sections 6 to safely withstand the pressure fronrthe soft concrete wall. Then the rod with its sec- .tions assembled as shown in Fig. 4 may be freely slipped into position and passed vthrough both sides of the wall form by a asimple endwise movement thereofthrough ithesialignedholes (Z. W-hen the central secftioii 12 has-beenaproperly positioned the nuts on theends ofthe outer sections 6 and the incur much expense because these intermedipate -sections" 12 are small rods ofsimple construction-andin fact ifOllllOSll purposes are onlylargewiresand will not cost'more than -.:t-he wires usuallyjleft in. walls, and they whave the further advantage that they do rnotihave to be'cut off at the outer surface :of'thewall. QThe recesses y may be easily filled or plugged "with cement. Usuallythe end-sections 6 can be very easily screwed off from the anchored central section 12 but if they should be somewhat stuck by the ".concrete they maybe easily loosened and uturnedofl by the application of a socket tic-ular consideration.

wrench l4: screwed against the adj acent nuts. 'lheend sections 6, nuts and washers will, roficonrs beused over and over again, and that fact isof importance because they are vthe [only parts of the complete rod whose costof.production are a inatterof any par- The concave or in a ternally beveled ends 9,serve to guide the vfitted-ends 13 of. the rod section 12 into the threaded seats: 8.

Attention is again called to the-importance ofthe arrangement wherein the central or intermediate rodsections 12 are of smaller diameter than the end sect1ons 6 and are in fact. simply straight. rods or heavy wire sectionsiwiththreaded ends. The bolt holes or passages in =jthefor1ns should not .he of much greater 1 diameter than the rod sections 6 forotherwise the applied rods would-not be properly positioned. and, moreover, there would he a leakage of concrete around. the

same; and if the central sections 12 have any parts of greater diameter than the end sections 6 then the assembled bolt could not be inserted to position from the outer side of the form and some sort of manual ma: nipulation would have to take place within the form or straight sides thereof and this latter indicated operation would render the tie bolts in'ipractical for use. Moreover, since the rod sections 12 in the ordinary use thereof would be left in the wall they should be of the simplest form and least possible cost, or in other words, should he of the structure and arrangement described and lllUSllZttGCl 1n the drawings.

The advantages in the use of this i1nproved tie rod or bolt may he summed up as follows:

The elements of the bolt proper may be assembled at the hench or elsewhere, ready for placin requires no manipulationbetween'the walls of the forms; leaves nothing but a small rod in the wall; the main elements of the rod are used over and over again; requires no cutting back of the con crcte; draws the forms to proper alignment; gives positive known strength and no bulging of the wallsldue to slipping or stretching; holes left in walls are easily plugged or plastered up; makes a watertight Wall;

rod sections left in wall cost approximately same. as tie wires; gives endwise ad ustment;

can be removed anytime after wall is set and even weeks after wall is set; can be removed with lock nuts or spec1al wrenches; does not damage forms and allows forms to ,be used over and over again without destruction; the rod sections left in the wall will afford good anchors in cases where brackets or the like are to be secured to the surface of the completed concrete wall. As

.is evident, the nuts 10 on the outer ends of the rod sections ,0? constitute one form of form stop, the said stops be ng ad ustable axially or longitudinally on the saidrod sections.

.lVhat I claim 1s: .1. A tie rod for nisertmn through prepared concrete forms, mode up of outer end threaded ends, the outer end sections hay ing internally threaded ends to engage the threa-dedhends of the intermediate rod, and

adjustable form stops for theouter rod sec tions.

2. A tie rodfor insertion through prepared concrete forms, made upof outer end and intermediate rod sections, the outer end sections being of substantially uniform diameter throughout, the inner section havin a diameter not greater than the outer en section diameter and having externally threaded ends, the outer end sections having internally threaded ends to engage the threaded ends of the intermediate rod and externally threaded ends, and nuts applied to the externally threaded ends of the outer rod sections.

3. In combination, spaced apart concrete forms, a tie rod for insertion therein, made up of outer end and intermediate rod sections, the outer end sections being of substantially uniform diameter throughout, the

JOHN B. HAWLEY, JRQ

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