US1447283A

US1447283A - Concrete mold

Info

Publication number: US1447283A
Application number: US464208A
Authority: US
Inventors: Edward L Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-04-25
Filing date: 1921-04-25
Publication date: 1923-03-06
Anticipated expiration: 1940-03-06

Description

Mar.6,1923. "1,447,283

5. L. DAVIS CONCRETE MOLD Filed Apr. 25, 1 921 Patented Mar. 6, 1923.

EDW'ARD n DAVIS, I or" sonnnnornrifnnw YonKQ i condemn, MOLD. ii.

Application filed a rh 25, 13.21? 'seri iitoiceases; I

specification.

This invention relates to'improvements'in concrete molds andhas for its object to provide an extensible mold."

Another object ofthe invention is to provide amold for building concrete structures so arranged that the mold may: be quickly moved fromplace to place as the building of the structure proceeds. f 1

Another object of the invention isto provide a concrete mold arranged" to? form [a block upon a structure being-built and'means whereby the mold may be removed leaving the block in its permanent position in the structure. I 1 fl Another object of the invention is-to provide an adjustable mold by means of which sections of concrete may bemolded upon the structure being built: and the position of the mold quickly changed; upon the. structure.-

With the above andother objects invieW, I have invented a device illustratedflin the accompanying drawings "in which Figure l is an elevational view of my improved mold,.

. I Figure 2 is a side elevational View thereof, and V Figure "3 is a section on line 3*3'Figure1.

This invention contemplates the provision of a mold for use in thebuildi'ng' oft-concrete structures and is so formed that the concreteis'molded in its permanent place ina Wa-ll in the process of'construction, whereby the Wall may be continuously erected by; horizontally shifting the mold I immediately to a new," positionafter' each molded section hasbeen'iormed until a coinplete concrete course has been finished," after Whichthe mold is raised to another similar. course to be formed upon the course'just completed. ii

In thefollovving' specification and in the views in the drawings like reference char-. acters indicate like parts and 1 indicates a concrete structure being formed bymeans or my improved mold 2, said'mol'd being formed by a pair of longitudinal horizontally disposed spaced apart Wall members 3 and l to which are connected a plurality ture 25.

ofarms Sand 6, respectively, said arms each 7 being the form of a bell crank, the vertical "portions 7 and-8 of whichextend above the, upper edges 9 and 10 of the members 3 "and 4: and have pivoted thereto the'he ads. 11

and I of the right and left screws 13 and. ll fwhich operate in the turn buckle mend-- bers 15; The; inclined'upper ends 16 and 17 are pivot'edto the'outer ends of

links

18 and 19, the inner ends or Wl'IiCh'aIB pivoted to the heads QOan d 21of the right and left screws 22am 23 operatingin the turn buckle-members 24 which also serve as o'peratingi ha ndles by means vof "which, the mold is releasedfrom its" operative position upon the concrete course 25 as-the mold-is verti cally lifted-from said coursei It will'readily be seen thatlupon raising up of the handles 24, the links 18 and l9aredrawn' toward'on'e another causing the drawingin of the 'e'xten- '

sions

16 and, 1 7 of saidarms5 and 6 causing a pivotal action of said arms-upon the pivot bolts '26 and '27 which throws 'the lower portion of said arms outwardly from said course 25 automatically as the rnold is'littedi Secured to the members 15 by means of the 'swivel '28 are straps-2%)- to'which' are'secure'd a central core 30 which forms the-space 31 between the Walls-BQ and'33 of said strucheightfthantheplates Sande in order that when adjusting themold to anew position the'core be seated uponthetie plates "34;, whereby-the mold is rested in position after which the handles 2flare forced down to This core 30 is 'sli'ghtly lessin;

a horizontal position causingthe vt alllplates 3 and 4,'-Whic'hproject at their lower ends slightly belo'vv the upper edgex3'5 ofthe former course, to-adjust and lock themselves in vertical alignment with said tormercourse The operation 'o'f-th'e said'turn buckle handles 2st and their'link connectionslwith' the upper ends 16 and la' of the arms 5 iandjG is limited in its downward movement by the studs 36 andet, which limitation-tends to 1001mm mold in its proper positionand icauseit to align vertically with the adjoining portion of the structure Whichihas already been molded. The studs 364377 and;38.39s are placed so; as a cause the horizontal center lines of the pivotlbolts 26 and-'27 in theturn loo buckle members 15 and the links '18, and'19 I in'ltheturnibucklemembers 24vto be slightly above the center lines ofthe said turn buckle members 24 and 15 When the turn buckle handles 2% are forced down to the limit in the act of closing, there securely locking the mold. Should the horizontal center lines of the said pivots and the said turn buckle members coincide as to levels when the mold is closed it would not be locked and would open with pressure exerted against the inner faces of the

side plates

3 and 4. Locating the said studs in the manner described will prevent the deposited concrete from prematurely opening-themold. The member 30 is slightly wedge shaped in order to facilitate its withdrawal from the concretemass last molded.

Ina short mold only two sets of the arms 4: and Bare required,- one set adjacent each end of the

wall plates

3 and 4.' However, in a longer mold, more of these arms and their connections will .be necessary to stiffen the mold to present any tendencyof the plastic concrete causing said plates to bulge. The core 30 may be centrally located onthe member 15 or it may be located toward one or the other sides of the molds according to where it is desired to

hayethe wall sections

32 and 33 of different widths. It is obvious that if a solid wall is required. the core 30may be removed from the mold.

The arrangement of the turnbuckles, l5 and 24 is such that the mould may be readilyadjusted to its narrowest, its widest or to any desired intermediate thickness for {the wall to be built.

I amaware that prior to my invention concrete molds having cores for makinghollowwalls and with side plates that operate either horizontally or radially have been made. I therefore do not claim'such a combination broadly; but

Having described my invention, that which I claim as new and desire to procure by Letters Patent is:

1. A mold for concrete consisting of-a set of frame elements with side platesattached thereto, upper and intermediate. cross bar members, a central core fractionally less in height than the said side plates pendent from the intermediate cross bar members,

links pivotally connecting the upper cross bar members with the uppermost ends of the said frame elements, whereby depressing the upper cross bar members, when the mold is resting free upon the said central core, closes and locks the mold in a predetermined position.

2. A mold for concrete comprising two or more sets of bell crank arms with side plates attached thereto, means whereby said plates may be relatively adjusted, consisting of two turn buckle members, theupper ones connected by links to the upper extremity of the said bell crank arms and the buckle members, when the mold is sustained solelyby thesaid central core, forces and locks .the mold. intonplace by aitoggle action. 4. In a mold for concrete, the'combinae tion of setsef side arms with-side plates at- .thergeltgfloyerhead. wturn. buckle members with piyotally connected side links jointed. totlie npper extremityjof the said side arms, intermediate turn. buckle membersvpiyotally .conneeted' to the said side arms whereby the relative distance between the said side plates may. be increased or diminished, means. for locking. the said mold wl ienclosed, saidmeans consisting of a set of studs so located in the said side arms that they the. downward meyementlof the said turnbuckle.tmembers whenfithe center lines ,of. the. said.turnbuckle. members are fractionaally, below the r center lines of the bearings the said side arms as mold Y n uding meld g beards equ pped with prish endins beyond the upper -g argins .015 said boards, a sec- .tional cross bar thev ends of which are pivotally connected to the upper ends of the said uprights, ant-l a v t; nnleuckle interposedbetween certain of said sections for relatiyely nioying the upper ends of said uprights. 6.- A mold including. molding. boards equipped i h rs'i t e l e y nd the 31119136} .margins of said, boards, a sectional cross-bar the ends whichare pivotal lyi connected: to the upper en ds of the said pr ghts a a ueb skle nt ed twee c r a t s d teatime ti e y moying the upper. ends of the said uprights, whereby, in connection zw it lied-jllsting the intermediateturnbuckle members, the perpsedie ar ty an re; el eei 0f t a molding. boards are secured In testimony whereof I aflix my signature inethe presence. ,of two witnesses.

EDWAnn n; 'ngivis, Witnesses:

lfiteGn m JOSEPHINE ,GOHJNS-