US944406A - Scaffolding. - Google Patents

Description

D. & L. BARGSAI.

SUAPFOLDING.

APPLICATION FILED MAY 29, 1908.

944,406, Patented Dec.28,1909.

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D. & L. BARGSAI.

SOAFFOLDING. APPLICATION FILED MAY 29, 1908.

Patented Dec. 28, 1909.

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SCAFFOLDING.

Application filed May 29, 1908. Serial No. 435,689.

To all whom it may concern:

Be it known that we, Dnsrnnnros BARcsAI and LUDWIG BARCSAI', subjects of the King of Hungary, residing at Aprod u. 2, Budapest, in the Empire of Austria-Hungary, have invented new and useful Improvements in Scaffoldings, of which the following is a specification.

This invention relates to a scaffolding wherein two parallel rows of poles arranged in pairs are employed, and the object of the invention is to provide a scalfolding that can be easily and quickly erected and taken down and carried away and yet be very strong and firm.

The invention is shown in the accompanying drawings, in which,

Figure l is a cross sectional view. Fi 2 is a front elevation. Fig. 3 is a horizontal section, and Fig. 4 is a detail view.

As shown in the drawings, the scaffolding comprises two parallel rows of poles arranged in pairs, the poles of each pair being spaced apart and rigidly connected together by bolts Z). Blocks a are arranged in the space formed between the pair of poles a at suitable distances apart, and are fixed with their ends in both poles. The pairs of poles are connected together in a transverse direction by beams c and 7'' set on edge and extending through the space formed be tween each pair of poles, and said poles are supported in a longitudinal direction by braces c, which are secured at (Z to blocks which are carried by each pair of poles.

The transverse beams c and f, are adapted to support the stages or platforms of the scaffolding. The lower beam 6 is provided in its bottom edge with recesses in which the blocks a engage, whereby the scaffolding is stiffened transversely, and the beam 6, is prevented from moving longitudinally. The upper beam f, has its lower edge resting on the upper edge of the beam 0 and said beam f is provided at each end with holes which are adapted to receive pins 9, the projecting ends of which engage the posts (4, whereby longitudinal movement of the beam f is prevented. If desired, the upper beam f may be omitted. The stage or platform is formed by the planks h, which rest on the upper edge of the beam f, said planks extending longitudinally of the scaffolding. Planks 2', having notches in their lower edges with which the upper edges of the beams f, en-

Specification of Letters Patent.

Patented Dec. 28, 1909.

gage are set on end on each side of the planks /z, and bear against the inner faces of the two inner rows of poles a, said planks 2', not only serving as a ledge for the platform, but also to strengthen the scaffolding longitudinally. Light beams is, having holes therein, whereby they may be connected to the poles a by bolts, extend longitudinally of the scaffolding, and serve as a railing for the platform, and also serve to reinforce the scaffolding in the longitudinal direction.

To secure the scaffolding to the walls of the building, we provide a beam Z, which is connected to one of the poles a, by a screw shackle we (see Fig. 3), and to the building by means of a double screw clamp 11, which clamps the end of beam Z against a portion of the building, as shown in Fig. 2, but in case there is no opening in the building through which the beam Z may project, as shown in Fig. 2, we provide the arrangement shown in Fig. 4:, in which a hook p, is screwed into the building and has its outer end bent at right angles and passes through a metal strap 9, which is secured to the end of the beam Z. To reinforce the beams Z, we provide a bar 1", which engages the inner ends of the beams Z by means of recesses provided in its under edge. As will be clear the scaffolding may be easily assembled in place and taken apart again, as all the parts are removably attached to each other.

What we claim is l. A scaffolding comprising a number of parallel rows of poles arranged in pairs with a space between the poles of each pair, blocks located in said spaces and secured to the poles, transverse beams having a series of notches therein adapted to engage with said blocks, each of said beams connecting a pair of poles in each row, a platform supported by said transverse beams, ledge forming beams for the platform having notches in their lower edges engaging with the transverse beams, braces for the poles, and means for securing the platform to the building, substantially as described.

2. A scaffolding comprising a number of parallel rows of poles arranged in pairs with a space between the poles of each pair, blocks located in said spaces and secured to the poles, transverse beams having a series of notches therein adapted to engage with said blocks, each of said beams connecting a pair of poles in each row, a platform supported by said'transverse. beams,. ledgenforming tudinallyioif the platform substantially as beams for the platform having notches in described. 7

their lower edges engaging with the trans In testimony whereof we have signed our Verse beams, braces for the poles, means for i names to this specification in the presence of 5 securing the platform to the building, said; two subscribing witnesses.

means consisting of a transverse beam -se--- DESIDERIUS BARCSAI. cured to the poles, means for securing the LUDWIG BARCSAI. inner end to the building, and a bar 1" having Witnesses: notches therein engaging with the inner ends J AKOB MAMIORF,

10 of the locking beams and extending longi- MICHAEL ToMoR.

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