US864767A

US864767A - Building-mold.

Info

Publication number: US864767A
Application number: US36719907A
Authority: US
Inventors: John D Bickford
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-04-09
Filing date: 1907-04-09
Publication date: 1907-09-03
Anticipated expiration: 1924-09-03

Description

No. 864,767.l 4MWENTBD SEPT. 3, 1907. J. D. lBICKFORD. x

" BUILDING MOLD.

u N l@ No. 864,767. PATENTBD SEPT. 3,-19o7.

J; D. BIGKPORD.

BUILDING MOLD. APPLIOATION FILED APB. 9, 1907,

'a snnn'rs-sn1sm" z.

,Mya

wnuurmuwc No. 864,767. PATBNTBD SEPT ,3,1907.

7 J. D, BIUKFORD. L

BUILDING MOLD.

APPLIATION FILED APR. 9: 1907.

Yawn. .if l

3 SHEETSMSHEBT 3.

.i0 J5 ff z'gj. 'ff

J0 f7/7 /f fH/w 1L W, f l W45 L1 H l 23' r I mwr l ,1" mm.

wir" @aow UNITED STATES -Pie'lENT OFFICE.-

.OHN BIGKFORD, OF CLEVELAND, OHIO.

BUILDING-MOLD.

Specicationl or Letters Patent.

Patented Sept. 3, 1907.

Application rua April 9,1907. serian. 367,199.

To all whom 'it rnay roncem: u

Be it knownthat I, JOHN DQBIckFoRD, a citizen oi the United States, residing at Cleveland, in the county of Cuyahoga andState of Ohio, have invented certain structure, upon the acbrnpletion oione the forms and.

new and 'useful Improvements in Building-Molds, of

which the following Lisaj specification.

This invention relates to wall orbuilding-molds, and has 'for its object to'provide an expansible separable, and adjustable `mold or vform suitable for erecting con-V crete buildings .orzuseiulin concrete building construction,

,Inasmuch as different buildings usually vary in framework in which the walls, columns, beams and girders -were molded. are usually 'of sma'll value, and must be rebuilt or changedin'various'ways to meet the dimensions of the nextstru'cture, either by sawing off` 'adjustable beam form. ,Fig. 4is asid'e elevation of a` the ends thereof for a difference lin height or length, or by taking them all apartffor ditferentlwidthsor thicknesses, anclfor the erection of a larger structure new timber is usually necessary, lbecause splicing of the'bld timber o'r forms will not` withstandthe strength test. In consequenceuof these and various other differences existing with respect toforms for concrete constructions,

old sets of timbers or 'for-maare frequently rendered;`

valueless, which is expensive, for itqoften takes several thousand dollars to supply the timber -forms necessary for :building amodern building.

The object of the present invention is to provide means whereby, the molds for the c'olumn's, beams; ooring, joists. etc. are adjustable to meet the requirements and dimensions ofvarious' structures, forminga permanent of fonnsadaptedfto 4b e used repeatedly,

.thereby lessening the costaud ,savingA waste.

.Variousembodiments ofthe `invention are illustrated in the accompanying drawings in which,l l

Figurel is a side elevation. o f a form for acolumn.

'Fig. 2 is a perspective'view thereoLwithout the con-v necting bolts, parts'being broken away. to show other parts more clearly. '3 is a vperspective view of van shore. Fig. 5 is a front elevation of thesame. f Fig. is a partial front elevation of a shore having a .modified top end adapted to receive the joists form or bearer.

Figs. "7 8 and 9'a're details showing akey'arrangement for holding the shores to beamsl and the like. Figs. 10 and 11 are side andtop planv views oia joist'bearer. Fig. 12 is a side view illustrating a knee support for the vcolumn and beam forms. l

Thecolumn form is shown in Figs. l and 2, consisting of upper and lower sections or forms held together by ii middle form or casing'lZ, which latter acts as a sleeveto cover or inclose the joint. The 'various sections are made of parallel strips' oxf staves indicated at 17 fastened together by 4bolts'8,9 andll, as will appearin 1, which extend Asuitable'holesl .iny the respective l staves of each wall or side of the form, and so bind the staves of ea'ch Wall together as well as the walls to each other. The'staves or strips 17 vary in width, say -rom a half inch up to several inches, and the adjustment is 4 effected by using more or less of these staves, that is,

. the'adjustment with respect to`width, thickness or diameter'. The outer casing or connecting part 12 it -over the adjacent ends of the sections 6 and l0, and is fastened thereto by means of bolts 8.

lsections 6 and 10, in other words, by drawing them more or less out of the connecting leasing 12,- before the bolts 8 are put in p1ace. Inorder to ll the space between vthe adjacent ends of the

casings

6 and 10,-a

cated at25, which are fitted 'between said ends. These `short strips or sections are made of the same timber The vertical adjustment ef the columnform seffected by extending or retracting the upper and lower supply, of short strips or, staves are provided, as indii with respect to width and thickness as the staves 17,

and consequently will`match the same in the various lateral adjustments' provided,l andy in order `to hold the short blocks 25 in place, the inner ends of .the

.staves 17 are undercut orbeveled, 'and the meetingv ends of the blocks 25 are beveled, as indicated as 2 8, 80

So that when: said blocks 25 'are put in place they are held by the bevel and cannotcollapse or fall inwardly, andthey cannot fall outwardly because the connecting 'section 12 extends or is placed around the same, to

' form a substantial backing for the joints. A stock of 85 short blocks or sections 25'are provided, of different lengths, which can be substituted according tothe work in hand'and'according to the height of the column.4 This construction vmakes it possible to use 'columns to reach any'height of ceiling, `and also to 90.

form columns of any size ordiameter, since the viorms more upper end of the form. ibut at the bottom a hinged door 1.5 is provided in one side oi the form. `This Y door may be clampedand held' closed `by'bolts 19 extending throughthe orrn, ori by removing the; bolts the doorcanbe openedand thebottm of the steel column or reiniorc'emnt'jgot at and wired toiproper t1051 position, 'after whiclfthedoor closed while theconcrete is run f At' the top theupper section' 6 .may becut away or Vout'on each sidetoreceive the\beamiformsleavin`g, v

corner post 20to hold, the beam forms in place. The ,dient-away parts at the.top,of..i114sfrtoll.fol'l y v'i'ith acorner columnfform as shown in Figs. l1 and2, 110

other columns may be cutout according to the beams they are to support, and obviously the shorter or cut-away staves can be changed to any side desired.

In Fig. 3 a beam form is shown consisting of a hori zontal casing formed in two sections, composed of strips 17l1 bolted together by bolts 9'* in a manner similar to the column form above described. The beam form is open at the top and at the ends, and between the end sections are spacing pieces 25, corresponding in number and section to the pieces 17, and undercut or beveled at the ends in the manner heretofore referred to. When the forms are assembled the beamior'ms rest in the recesses at'the top of the column form, and have side braces 2lc which project against the sides of the column form and` steady the parts. The strips 17 and the pieces 25a allow the size of the beam form to be adjusted with respect to the width, thickness and length, in the manner similar to that already described with respect tothe column.

The joint between the sections ofthe beam form is re inforced and inclosed by a central casing 30 which is composed of strips in a manner similar to the middle casing 12 of the column forms, said strips being held I together by cross bolts ll extendingvertically and horizontally, and bolted to the beam sectionby bolts 8a. Cross bolts 29 extend through the sides and bottom of the form and support blocks 18l which carry a joist or timber 22 held by movable clips 27E. These joists or timbers extend parallel to each other on opposite sides of the beam form and are supported on the joist bearers to be hereinafter described. The joists or beams 22 are for supporting the deck or temporaryfloor which when laid is flush with the top oi the beam form, and which in the building construction will be covered with thc concrete forming the floor and ceiling between the beams.

The beam iorm shown in Fig. 3 has the advantage that its sides are detachable by taking out the bolts, after the concrete has set, allowing a circulation oi air around the beam which will dry it-in less time than it now takes.

The adjustable shores shown in Figs. 4 and 5 serves a props for the beam forms and the joist bearers, and consist of anupright 36 having a cross piece 34 at the top .fastened on each side by blocks 54 secured by bolts 40.

Said upright is supported at its lower end between parallel uprights 37 connected at the top'by blocks 38 at each side, bolted thereto, and having. a block 4l between the uprights at the bottom. The upright 36 will move up and down between the lower bars 37 so that a vertical adjustment can be had, and set by bolts 20c extending through any of the series of holes lll in the uprights.

For the purpose of holding the upper bar or upright 36 on the beam form or joist when adjusting the shore,

two blocks 19h, as shown in Figs. 8 and 9, are secured to the cross piece 34, and a Wedge key 12c is driven between the blocks and the beam orm at one side. 'I his binds the top of the shore to the beam form and allows the shore to be adjusted to proper height.

In'Fig. 6 a modilied form of shore is shown, having a top end provided with upwardly-projecting strips 43 secured to the upright and provided at the top with a cross bolt 50 which may be used to connect the shore to a joist bearer. V

Extensible and adjustable joist bearers are shown in Figs. 10 and 1l, consisting of horizontal lengthwise strips 53 connected by parallel strips 58 and bolts 55, v

at .60, joined to the 'column and beam forms by vertical and horizontal bolts 6l, which extend through the forms All of. the parts .used in building the forms will be provided 'withsuitable bolt holes to receive the bolts heretofore referred to and to allow the various adjustments. `A set or stock of pieces or parts constructed in accordance with this invention will enable a builder to 4construct forms for various kinds and sizes of work,

which can be built up to proper size and used repeatedly and allowing an adjustment to accommodate work of different widths and thicknesses.

l claim:

1, A mold for cement or concrete construction. comprising sections placed endwise with respect to each other and an outer casing inclosing the adjacent ends of the sections, said sections and casing being formed of a plurality of staves extending lengthwise beside each other. the staves of the sections and casini,r being of similar widths and capable of b eing removed or replaced to equally vary the size of said parts.

2, A mold of the kind described, consisting of sections placed endwise and spaced witlrrespect to each other. an outer casing inclosing the adjacent ends of the sections. and filling pieces fitted between the said ends and within the casing.

A mold of the kind described. consisting of sections placed endwise and adjustable with respect to each other. a middle section inclosingr the adjacent ends of said. sections. and filling pieces fitting between said ends and within the middle section, the said sections being all built up of staves extending lengthwise side by side and separably fastened together. whereby more or less of the stares may be used, to vary the cross-section of the molo.

4. A mold of the kind described, consisting of sections placed endwise and spaced with respect' to each other. the `)adjacent ends being undercut. filling pieces located between said sections and retained under said ends. and an outer casing surrounding,r said ends and the filling pieces.

- In testimony whereof l aix my signature, in presence of two witnesses.

JOHN l). BICKFORD;

Witnesses .ToHN A. Bouiriunnr. SHIRLEY .l. Boxiimxnn'lz