US1596868A

US1596868A - Floor form

Info

Publication number: US1596868A
Application number: US373529A
Authority: US
Inventors: Brynoldt Christian
Original assignee: Blaw Knox Co
Current assignee: Blaw Knox Co
Priority date: 1920-04-13
Filing date: 1920-04-13
Publication date: 1926-08-24
Anticipated expiration: 1943-08-24

Description

C. BRYNOLDT FLOOR FORM 8 Sh 11s-Sheet 2 8 Sheets-Sheet 3 C. BRYNOLDT FLOOR FORM Filed April 13. 1920 MMR/vins C. BRYNOLDT FLOOR FORM Filed April 15. 192 8 SheetS Shee1-, 4

By i j Alm/Mfrs ug. 24 H926.

C. BRYNGLDT FLOOR FORM 8 Sheets-Sheet 5 Filed April 13. 1920 [Il M ilnll c. BRYNOLDT Aug.z 24

FLOOR FORM Filed April l5, 1920 8 Sheets-Sheet 6 Aug. v24 1926. 1,596,868

c. BRYNOLDT FLOOR FORM Filed April l5. 1920 8 Sheets-Sheet 7 Mw iwi/ c. BRYNOLDT Aug., 24

FLOOR FORM 8 Sheets-Sheet 8 Filed April 15. 1920 Patented Aug. 24, 1926.

UNITED STATES PATENT OFFICE.

CHRISTIAN BnYNOLDn/or PITTSBURGH, PENNSYLVANIA, Ass'IeNon To BLAw-xNox OOMrANY, A CORPORATION or NEW JERSEY.

` FLOOR FOB/M.

Applicants inea April 13, 1920. serial No. 373,529.

vision of an improved form for column supported fioors.

My inventionvalso contemplates the provision of improved means for supporting the form whereby the same may be readily and quickly taken down'without interference V with adjacent units;

The genera'lfobject of my n'nvention is to eii'ect an economy in the 4permanent plant investment and in the time and labor ordinarily required. in this class of work. l.

rThe foregoing, together with such other .objects as may hereinafter appear, I obtain by means of a construction which I have i1- lustrated in preferred form in thev accompanying drawings, wherein Fig. 1 is a-`vertical section taken through form apparatus embodying my invention on the line 1 -1 of Fig. 2; Fig. 2 is a top plan of the apparatus thereof 'broken awa to more clearly illustrate the structure; Flg. 3 is an enlarged side elevation of that portion of Fig. '2 between the arrows marked 3-3 Fig. 4 is a section taken on the line 4-4 of Figs. 1 and 2, ,on an enlar ed scale; Fig. 5 is a fragmentary section illustrating a portion of the floor form in collapsed position ready to be telescoped through the work and set up at anew point, and taken on the line 5-5'of Fig. 2; Fig. 6 isan end elevation` of the centre panel andthe sideor wing panels in collapsed position; Fig. 7 is a side elevation of an end panel and one of its sides or wings in collapsed position, together with the traveler therefor; Fig'. 8 is a view similar to Fig. 7 showing an end panel and its plinth and capital or column head mold section in collapsed position; Fig. 9 is an enlarged side elevation of the traveler for the centre panel, illustrating the manner in which the panel is supported thereon; Fig. 10 is a fragmentary'plan view of a detail of the traveler shown in' Fig. 9; Fig. 11 is .n enlar ed section taken on line 1,1-11 of Fig. 2; ig. 12 is` an enlarged section taken on line 12-12 of Fig. .2; Fig. 13 is an enlarged section taken online'13-13 of Fig. 2;

Fig. 14: is a fragmentary side elevation,

drawn on an enlarged scale, of that portion of the apparatus between the arrows marked 14-14 of Fig. 2; Fig. 15 is an enlarged seci tion taken on theline 15--15 of Fi 2;.Fig. 16 is a view illustrating a detail of t e means, carried lby the traveler for collapsing portions of the form; Fig. 17 is a side elevation of a portion of the column form, drawn on an enlarged scale; and Fig.l 18 is an enlarged detail of the joints utilized for hing.-y

ing the swinging-portions of the form to the panels;

Referring now to Fig. 1 the shores, which are preferably set up in rows forming bays, and on which the forms are to be su ported, are indicated at 7. 8 are the shan for the columns A. Depending v\.upon the length of the form, considered as a unit,`

the form comprises one or more centre panels, B; end panels, C; wing or side panels, D. carried at either end of the centre panel; side or wing panels E, carried by the end panel, C; and the combined plinth and capital or column head sections F and G, re-

molds spectively carried by the centre panels and the end panels. Each end panel, therefore, has two wing panels, and a combined plinth and capital mold section, while the centre panelsl have two wings and a combined 'plinth and capital section at each end, so

that when the parts are assembled and positioned as shown in Figs. 1 and 2 a practically complete form for a section of the floor results. The preferred construction of .the various parts willnow be described. l

The centre panel B` comprises a frame composed of a pair of longitudinal channels 9 and a plurality of transverse channels 10 secured to the channels '9 in any preferred manner. Carried on the channels 10 are plu rality of nailing strips 11 to which the lagging 12 is nailed, see Figs. 1, 2, 3 and 5, for example.

The shores 7 on either side of the columns are provided near the topv with brackets 13, detachably secured to the shores one on each side. Pairs of

channels

14 and 15 are placed on the brackets 13 in the manner in' verse channels 18, secured to the lowerfaces of the

channels

16 and 17 and the angles 19., secured to the bottoms of the channels 18,

and spaced apart to receive the eye of a ratchet jack 20 (see Figs. 2, 3 and 13). This frame carries the nailing strips 21 to which the lagging 22 is nailed. Each of the

channels

16 and 17 is secured by a pivotal connection 23 to a channel 9 of the central panel frame, the details of this connection being illustrated in Figs. 13 and 18. The channels 17 of the Wings D project well bevond the free end of the Wing frame.

The Wings E are constructed in substantially the same Ina-nner as the Wings D, practically the only difference being that the corresponding channel 17 is offset with respect to the channel 17 on the adjacent wing D-so that the two channels may lap past each other as indicated in Figs. 2, 3 and 14. The frames of the w'ings E -are pivoted to channel 9A of the frame of the end panel C. lVhen the wings D and E are in the position shown in Fig. 3 the inner portion of their frames, that is to say, those portions nearest to the respective column, are supported against depression under load by the brackets 24 which are carried by the channel 14 in position to support the free ends of the channel 16 of the wing frames (see Figs. 4 and 15) The outer ends of the wing frames are supported against depression under load by detachably bolting together the overlapping ends of the channels 17, as diagramatically indicated at 25 in Figs.3 and 14.

The end Ipanels C are composed of a frame-work of structural members such as the channel 9LL and the

.channels

26 and 29, the latter being secured to the channels 26; the nailing strips 27 carried on the channels 26; and the lagging 28. The end frames are supported in the position shown in Figs. 1 and 3 on the ends of the

channels

14 and 15 and by the channel 30 which is carried on the detachable brackets 31 on the end row of shores 7.

The frames for the combined plinth and capital sections G and F consist of the channels 32, the pairs of spaced angles 33, and the channels 40. The Stringer 34 is carried on the angles 33 and the nailing strips 35 arey following manner: Secured to the top of each halt` capital mold is a semicircularchannel 38 which rests upon and is secured to one of the channels 32. The ends of the channel 38 are supported'by means of vthe brackets 39 secured to the channel members 40 constituting a part of the fra-me work of the members G and F. These brackets 39 also serve as a support for nailing strips for the lagging 36.

The `frames of the members G and F are prevented from sagging under load by virtue of the fact that the channels 40 are provided with clips 41 which rest upon the channels 15. See Figs. 2, 4 and 12.

It will be understood that the frames for the members D and E, and G. and F are hinged or pivotally connected to the frame of the adjacent panel member by the pivotal connections 23. It will also be understood. that a pair of jacks 20 is provided for each plinth member, the eyes of which are secured to the angles 33.

The side walls of the plinths are formed by the members 42 which are secured to the channels 16 of the wings E and D, and by the filler members 43 which are secured in position by means of the brackets .44 connected to the

channels

9 or 9, as lthe case may be. The gap between the Wings E and D and the sections G and F is closed by stringers 45 which rest upon the tops ot' the shores 7 (see Figs. 2, 4 and 15). At the ends of the units I also provide stringers 46 (see Fig. 3 at the left) on which are supported the strips 47. Such strips acting as a filler member lill the gap between the end of adjacent units or between an end ot' the unit and some other portion of the structure.

With the parts positioned as described it will be clear that they will be securely supported. The means whereby the forms may be collapsed and lowered for telescoping through the work or through other forms in place, will now be described.

For a center panel, a traveler H is provided which rides on rails 50 extending logitudinally of the bay, and for an end'panel a traveler I is provided. 0n reference to Figs. 1, 5 and -9, it will be seen that the traveler H comprises a suitable frame-work built up of structural members having four guide posts 51 Iwhich slidably receive the posts 52 which carry a platform composed of structural members. lVhen the platform is elevated by raising the posts 52 by mechanism which will hereinafter be described, the platform is brought up against the channels 10. The traveler I is of the same general construction, but is provided with a pair only of guide posts 51 and elevating posts 52 and when the latter are elevated the platform 'is brought in to engagement with the channels 26 of the end panel trame.

Assuming now that the travelers are inV the position indicated in Fig. 1, to collapse the form, the bolts25 are removed freeing thev members 17; the brackets 24 are `re'- y moved, which lfrees they Wing members E and D for collapse by their respective jacks; the brackets 44 are removed; and the chanare slidably Lacasse dition I have provided the following mechanism: Each jack 20 has an eye secured to an angle running longitudinally of the traveler platform, there being a pair of such angles 55 one for the set of jacks on one side of the traveler and the other for the set of jacks on the other sidel of the traveler. At each end, the angles 55 are provided with an angle clip 57 to which is secured a verticalplate 56. The angles 55 are supported on the cross channels 58 of the traveler platform and the )angle clips 57 andthe plates 56 are so disposed as to lie on the outside of the channels 58. At the bottom each plate 56 is provided Ywith an angle clip 59 adapted to engage the 'bottom of the Achannels 58.' By this construction the angles 55 yoked to the channels 58. At the end of the angles 55, I provide jacks 53 secured to the angles 55 by means of'the angle clips 59, the other end ofthe jacks belng secured to angleclips,A 60 which arein turn secured to the channels 58. The jacks 53, therefore, operate to shift the angles 55 toward and away from the centre of the traveler platform. When the arts are in the position shown in Figs. 1 an 3 the jacks 53 are shortened, while the jacks 2O are fully lengthened. In collapsing, the jacks 20 are first fully shortened, which partly brings the swinging members downward, after which the jacks 53 are lengthened which shifts the angle 55 to thecentre stop 61, as shown, for example, in Fig. 6. This brings the swinging parts in full down position.

The jack arrangement for the end panelis fundamentally the same, the only differences being those that are incident to the fact that the traveler I has but one set of jacks for its wings and plinth sections.

In Figs. 7 and 8 the end panel wing section and theV plinth section are shown in `co1- lapsed position.

When the swinging sections have been swung downwardl or collapsed, the platform ofthe trave ers are lowered clearln the form and permitting it to be telescope and set up at a new pomt. The means for raising and lowering thetraveler latforms will now be described, attention ing d1- rected to Figs. 9 and 10.

Ratchet jacks having one end connected to the traveler frame and the other end connected by suitable links 66 to beams 67,

are provided. The beams 67 are pivoted to'. the traveler frame much closer toward one Among theadvantages incident to the construction are the fact that the initial plant equipment and, therefore, the initial investf ment are greatly reduced because the form a paratus can be taken down after a relative y short time and set up for reuse etc., etc. In this connection, attention is directed to the fact that the

members

45 and 46 which are carried on the shores and which remain in position, are suiicient to support the concrete until it is thoroughly set. The apparatus is relatively easy to manipulate and effects a great saving in time labor and materials over the ordina methods followed in this art. It will also e seenthatr the form, considered as a unit, may be taken down without interference with an adjacent unit and that'i'f desired certain portions of a unit t, may be taken down without disturbing the remaining portions. A

It 4will also be seen that in setting u the device the travelers may be used to shi the parts and supportthem into the pro er posi- I tion until

channels

14 and 15 and t e vari-- osts 52 4by suitable ous brackets hereinbefore referred to areset i upl and secured, afterl which the traveler apparatus may, if desired be detached and used elsewhere either tol taire down or set up 4for other units. Itwill be Vap arent that the apparatus has great utility w ere operations are to be carried out on a large scale. What I claim 1s':-

1. A mold formapparatus for concrete` down the` collapsible -section and oors and the like comprisin in combination false work, a collapsible mo d form' section, means detachably supporting the section from the false work, mold means carried by the false work adapted to be left in posi-l tion until the concrete sets, and' means for taking down the collapsible section, said last means including said mold section. v

3. A mold form apparatus for columnl means for collapsing the supported floors and the like comprising the j combination. of a panel mold section, a col-- umn mold section connected therewithV for collapsing movement, means for releasiblyposition, and means for collapsing the col-` a supporting the section in operative position,

and a take down mechanism for taking down the sections as a unit.

5. A mold form apparatus for column supported floors and the like comprising the combination of a panel mold seetion,'a column mold section connected therewith for collapsing movement, and means for releasably supporting the sections in operative position to permit of collapse and taking down as a unit.

6. A mold form apparatus for column supported floors and the like comprising the combination of a removable column mold, a capital mold section and a panel mold seetion with which the capital mold section is connected for collapse whereby the two may be taken down as a unit.

7. A mold form apparatus for column supported floors and the like comprising the combination of a removable column mold, a combined capital and plinth mold section and a panel mold section with which the capital mold section is connected for collapse whereby the said sections may be taken down as aunit.

8. A mold form apparatus for column supported floors and the like comprising the combination of a removable column mold, a plinth mold section, and a panel mold section With which the capital mold section is connected for collapse whereby the two may be taken down as a unit.

9. Mold form apparatus of the character described comprising floor mold sections articulated together, means includin falsework uprights for normally7 supportlng'said sections substantially horizontalA rele-asable to permit them to be folded together between the falsework uprights, and means for thus collapsing the sections and lowering them between said u rights.

CHRISTIAN BRYNOLDT.-