US1330290A - Shoring - Google Patents

Description

0. J. WESTMAN.

SHORING.

APPLICATION FILED JAN. is, 1918.

1,330,290. Patented Feb. 10,1920

5 ==pa1 e11 fromv the follo ing description. take floors and ceilings. .15.

OLAF JOEL wEsrMeor LiNooLN, NEBRASKA.

snonme.

Specification of Letters Patent. Patented Feb. 1920.

Application filed January 16} 1918, Serial No. 212,013.

To all whom it may concern:

Be it known that I, OLAF JOEL WESTMAN, citizen of the United States, residing at Lin- 00111, in the county of Lancaster and State of Nebraska, have invented acertain new and useful Improvement in shoring, of which the following is afull, clear, concise, and eX- act description.

a 1 1 This invention relates to improvements-in adjustable and portable .trestles andniore particularly to a'combination trestleQand scaffold support adapted primarily'for use as shoring in the construction of concrete It 's well known that in the construction j of concrete floods and ceilings it is necessary completed, I by hammering,1 muchjarring to the building and particu-t larly to the floors betweenwh-ich the'supports were erected.

I to provide somemeans for temporarily supportingthe molds during thepouring and setting of the concrete; Heretofore, it has been common practice to provide T-shaped supports at various intervals beneath the molds for this purpose.- These supports were-rigidly constructed of heavy lumber,

but owing tothe fact that distances between floors and ceilings vary in different buildings, the supports were not of universal applic ation and oftentimes had to be either shortened or replaced by new ones of different dimensions when different fioo'r spacings were encountered, either n the same build,- ing or m the erection .of'oth'ers." This resulted in the loss of much valuable lumber and also necessitated the expenditure of time and money in the construction of'new: supports. Furthermore, these posts or supports were removed, after the' fioor or ceiling had been which caused Ogne object of the present invention, there fore, is to provide a device, of the character whereby the trestles or supports may be described, which will effectively overcome thesevanous disadvantages and one which J will be of universal application, simple in ,construction andope'r'ation and economical to manufacture 1 Another objectz'is the provision ofmeans readily and quickly removed after the floors or ceilings have set, 'w'ithout'hammering them or-in any other'nianner causing the said floors or ceilings to be arred or otherwise subjected to strain andpossible injury."

Other objects and advantages will beapuprights, 15

jith p ac y of various types.

, in connection with the accompanying drawings wherein the preferred embodiment of I the invention is illustrated. p

Figure 1 is a front elevation of the trestle illustrating the same inoperative position,

Fig. 2 is a side elevation, and v F g. 3 1s a section taken on l ne Referring more in detail to the drawings, i v

the device is shown as comprising a rectangular frame 10 preferably constructed of vertical members 11 and horizontalmembers 5' 12, said frame'beingreinforced by aplurality of braces 13.- Adjustably secur edby means of clamps let to the vertical members '11 of the frame 10 are uprights 15. The

clamps 14 comprise substantially Lleshapedg brackets 16 which embrace the adjustablef uprights 15, one end of each of said ;U shaped brackets 16 being secured by means of a bolt 17 toone face of the vertical meIn-. here 11 ofthe framelO. On the opposite face form a part of the clamps 14, are secured by means of the same bolts (17) which hold the short pieces 18 extending beyond the sides of the frame-10, substantially as showmand providingmeans for the reception of the ends of the bolts 19 which are -c arried by the corresponding ends of the U-shaped brackets 16 and which serve as'means whereby said brackets may befirmly clamped about the tohold them in their adjusted I positions. i

.Fremthis it will benoted that by merely loOSQning the bolts 19 of, the clamps 14; {that the adjustable uprights 15 may be, moved up or down relatively to the frame 10 so as to provide for various, floor spacings. In this manner, the trestle may be adjustedto various heights and, therefore, [is of univerr .sal application for purposes of floor and cellof the frame, short straight pieces 18 ,which 0 V ii-shaped brackets l6-to the members 11, said ing shoring. On. the other hand, if it is desired-to remove the.adjustable-uprights 15 from the frame 10 this may be accomplished by merely removingthe b olts;17. In .this manner, the adjustable uprights 15 are released from the frame 10; substantially as shown in; dotted line. in :Fig 2, thus; -p ermit- The j sts an gir rs -a eefl g ting'said frame 10 tobe used independentlyv of t he p s of h tr stle, iitjdesedio a support for s aifold n the process o co str c ion aras esis te as; A plurelitr-S 9f; L PD9 l g ,.-1. R--;-

rights are illustrated at 20, said uprights being mounted on the upper edge of the frame preferably directly over the upright members 11 thereof and being of sufficient length to support the floor or ceiling by engagement with the girders thereof, substantlally as shown. The supporting uprights to- V gether with the frame 10, it will be noted,

support the entire weight of the mold duringthe pouring and setting of the concrete.

The adjustable uprights 15 which extend upwardly from the frame 10 are used merely to gage the distance 'between the floors and to reinforce said supporting uprights 20. It will be noted from the drawings that the uprights 15 supportnone ofthe floor weight,

but merely extend upwardly far enough to overlie opposite sides of a plurality of the girders and to embrace the same whereby the trestle, when positioned, is held'against accidental transverse displacement. These adjustable uprights 15 also provide means whereby the supporting uprights 20 may be held in place after they have once been positioned. The means for so holding these uprights 20 in place is shown in the drawings in the form of members 22 temporarily secured to the beams 20. and 15 by means of nalls, screws or any other suitable fastening means. It is, of course, obvious that other;

means of retaining the supporting beams 20 in position may be provided, if desired.

After the concrete of the floor or ceiling, whichis being constructed,,has been poured. and has set, the trestle is removed by merely removing the temporary retaining means and springing the supporting uprights 20 out of position. 1 may thenbe quickly lowered by merely loosof the clamps 1 1-, thus permitting said uprights to slide to their low- 'ermost positions. However, if desired, as.

*The adjustable uprights 15 ening the bolts 19 above set out. the adjustable uprights 15 together with the clamps 14 may be removed altogether from the frame 10 by removing the bolts '17. V

It will be noted that the deviceher'ein described, is not limited'to shoring purposes,

but may also be used in the erection of 'scaf ffolding where adjustable supports'are de-' sired. If scaffolding of the ordinary type,

' wherein the supports are rlgidand non-adjustable'is desired, however, the frame 10,

' after the'trestle has been disassembled, may; i *be used for-this purpose,"as abovefpointed out. As short'pieces of lumben such as the uprights QOwhich are used in the present device for supporting the weight of the floor or ceilingsbeing constructed, are always available during the construction of a buildinggit is obvious'that the necessityofvjcutv ting long posts or supports; such as was common in the method 'of' shoring heretofore fpractised, is obviated. It will also be noted as thatit is not necessary in the 'use'of'the trestles herein described to hammer the same out of position after the floor has hardened, thedevice being removed as above describedby merely springing the supporting uprights 20 out from under the girders.

It 1S1 not desired to limit the invention illustrated and described herein except where limitations appear in the appended slidable uprights and adapted to support the weight of a floor during construction."

2.;A device for shoring 'fioors and ceilf ingsn during construction," comprising a frame, uprights carried 'by 7 said frame, means whereby sald uprights may be moved relative to said frame into contact with the sides of a plurallty of the girders of said floor or ceiling, a plurality. of supporting members mounted intermediate said girders and said frameand supported by the latter:

and means for temporarily securing said supporting members to said uprights.

3. In a temporary buildmg construction,

the combination with a floor. of means'for supporting the same comprising members arranged end to end in line with the"c'om'-:--

pression thrust caused by the weight being supported, and means'secured to said members temporarily to hold them in line, asa

toggle, during construction, but permitting said toggle to break when removed there from thereby shortening the effective length of the composite supporting means and permitting ready removalof the hrembers'cbmposing-the same. 41. In a'temporary' building construction, the combination with a'floor, ofmeans for supporting the same comprisingmembers arranged end-to end in linewith the coin pressionthrust caused by the'weight being 7 supported. and means adjustably securedito one of said members and temporarily secured to the-other of; said members to hold said members in line as a toggle during con struction, but permitting said toggle to break when removed therefrom.

'5. In a tempo'rarv.

building construction, the'combination with a concrete formfof 'means for supporting the same comprising 7 two vertical compression members arranged end to end, the lowerone of said 'compres-C sion members being a, permanent portable' structure of fixed hei ht and the'bthe'r of said compression members being temporary and cut to length'to meet requirements, an

auxiliary member adjustably. clamped to' said permanent'member, detachably secured to said temporary'member and of a length" suflicient to securely hold said two members in line as a toggle despite variations in the length of different temporary members, the detachment of said auxiliary member permitting said toggle j oint'to break,to permit the removal of said members.

6. In a temporary building construction, the combination with a concrete form, of means for supporting the same comprising two vertical compression members arranged end to end, the lower one of said compres sion members being a permanent portable structure of fixed height and the other of said compression members being temporary and cut tolength to meet requirements,'an auxiliary member longer than the maximum length of any one temporary member, whereby it may be detachably-secured to atem porary member and extend above andbelow the same, being temporarily engaged at 7 its upper end by said concrete form and being adjustably secured ,at its lower end to said permanent member, whereby it may extend a uniform amount above said temporary member and may hold said temporary and said permanent members in alinement. 7 p

7 In a temporary building construct-ion the combination with a horizontal concete form of a plurality of supporting units therefor, each comprising two vertical compression members arranged end to end, the

lower one of said compression members beng a permanent portable structure of fixed height and the other of said compression members being temporary and cut to length to meet requirements, an auxiliary member adjustably secured near its lower end to said permanent member and extending upwardly along said temporary member and above the latter, being temporarily secured to said temporary member, and means temporarily bracing said units in spaced relation.

8. In a temporary building construction,

the combination with a pair of compression 7 members arranged vertically in end alinement and adapted to support the required weight, of a thin auxiliary member secured thereto, sa1d f compression members being held against movement as a'toggle by said auxiliary member and the latter being ar-" ranged in the plane in which said membersv move when said auxiliary member is withdrawn 1 9. In a temporary building construction,

the combination with a plurality of reotangular frames of fixed height, of a pluv rality of temporary upright membersafor each frame, the length of which is variable, said uprlght members being supported on said frames in vertical alinement therewith,

said frames having'narrow bases whereby,

the weight being supported tends to move sald members and frames out of alinement, and thm aux liary members arranged in the plane of such movement and secured to said members and said frames to resist such.

movement until the completion of the construction.

In witness whereof I hereunto subscribemy name this 7th day of January, A. D.,

- OLAF JOEL VVESTMAN. -Witnesses:

MARTIN LUTHER EAs'rnRnAY, GERTRUDE E. ERICKSON.

10. In a temporary building construction,

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