US1033252A - Combination-support for scaffolding. - Google Patents

Description

T. H. KINGSTON.` COMBINATION SUPPQRT FOR SGAFPOLDING.

APPLICATION FILED JAN. 23,' 1911.

Patented July 23, 1912.

V,UruTnD STATES lPaTiarfrT ermee.,

COMBINATION-SUPPORT FOR SGAFFOLDING'.

Specification ofLetters Patent. Patented uly 23,1912.

Appncatio. and January 2e, 1911. KVVsemi No. scema.

v p folding, of which the following is a specitication.

My invention relates to improvements in supports for staging employed by builders in the erectionv of structures of concrete,

brick, stone and other materials, and the ob-k jects of my improvement are, first, the provision of light but dependable devices insuring stability and strength; second, to obviate the omission ofcertain members in the walls to secure a `foot-ing for the ordinary ,scaold supports; third, to avoid the labor of replacing said members in order to complete the building; fourth, to ,insure a better finish and appearance to the Walls after completion and in other essentiels hereinafter described and deiin d in the claims. I attain said objects through the construction illustrated in the appended drawing forming a part of this specification, in Whichz- Figure 1, delineates a portion of a brick or stone edifice in perspective exhibiting my improved invention thereto applied, and which l designate a combination support for seaffolds. Fig. 2, is a similar view showing its application toA a concrete building. Fig. 3, is a side elevation of Athe form of support employed in supporting a Ascaffold when erecting Walls of concrete or other cementitious material. Fig. 4, being an edge elevation of the same. Fig.. 5is a detail in part section to exhibit the anchorage of the brace bars. putlog sustaining the staging and applied in the erection of bonded walls of brick or stone. Fig. 7, is a fragmentary perspective illustrating the foot of the angleiron brace, and Fig. 8, a detail in part section to show the devices confining the putlogs to the poles.

Corresponding numerals of reference denote like features throughout the drawing referring to which l denotes the several poles or uprights located at a convenient distance from the building and seated in or upon the ground. At a selected height the ends of the putlogs 2 (Fig. 1) remote from the Walls under con- Fig. G, illustrates the vertical poles in a horizontal position sub? iters PatentNo. 915,187, of March 16, 1909.

walls are armed with one vor more clencher plate's 3 and 4 (Fig. 6). The ends of said ;putlogs being kerfed transversely or horilzontally as preferred, as at 5, and of sufficient depth to secure strength for the supe port of the imposed weight of scaffolding and artisans. ln these kerfs 5 are introduced-the clench-plates 3 the inserted ends (Fig. 6) of which are leentA slightly upward so as to obtain in their working position a firm hold of the header (assuming a conf struction of brick) it beingunderstood vthat said plates 3 andl are entered into the intera stices between the courses of brick; the morjtar, or bonding material being omitted at the withdrawal of said plates. |The plate 4, is also curved at its protruding portion, and

bolts and thumb-nuts 6,- -the inserted end upwardly bearing upon the strat/cher. Said plate is merely an auxiliary to obviate ani7 possible twist of the putlog during its use,

ciency ofthe plate 3, and for this purpose is made in a detachable manner. Screw threaded bolts and nuts 7 permanently confine the plates 3 to the putlogs and also to secure the reinforcing bands or collars Sv which prevent any tiseuration or fracture of the working ends of said putlogs. To furtherincrea'se the sustaining properties of these putlogs, I attach at an acute angle the brace bars 9 and 10, the former-consisting of angle irons ypivotally attached adjacentA to the' kerfed ends of the putlogs as at 11 and so positioned in their relation thereto as t0 the under-surface ofsaid .putlogs for the said irons 9, are formed with integral pierclngpoiuts 1.3 produced by un angular cutting from the edge of the metal to the'eentracted to a vertical position as observed in Fig. 7. The irons 10 also pivotally attach stantially as illustrated, by ledger clampsv f fully described and claimed in my U. Si Let` attached to the under surface of the' putlog and thereto adjusted and conned by screwand is not absolutely essential to, the. eilibring one of the sides of said irons beneath ter of one of its surfaces and the points re struction is attached and secured to said i etThe ends of the putlogs adjacent to the i intervals for that purpose and restored after purpose presently explained. To facilitate this action, a portion of one surface of the iron is cut back from the pivot 11, as depicted at 12 (Fig. 4). The lower ends of tering the pole by to the outward ends of said putlogs and similarly secured to the lower ends oi the angle irons, comprise a pair of collapsible members jointedly connected centrally from their ends, and When folded lying against the sides of said angle irons 9 and parallel with the side of the putlog, thus securing compactness for shipment. To still further contribute to the holding capacity of the putlog several spurs 14, (Fig. 8) are driven, as ay permanent feature, into the surface contiguous to the pole l the points of said spurs encompression of the ledger clamps previously `mentioned.

In the erection of concrete structures, manifestly the Walls require a different treatment from those described, and no clench plates would be employed. I, 'there fore, substitute for the putlog, the scaffold beam l5 (Fig. 3),' equipped and secured to the pole as is the putlog already described.

The convertibility and simplicit of my improved invention together with its duran bility make it a4 desirable acquisition in erecting habitable structures, and, While minor changes may be made in the precise details and exact arrangements of the' parts, I do not restrict myself but may use such fair equivalents as Will come Within the spirit of my invention, which, having ascer tained, I claim l. The herein described supports for inserta clencher plates having curvedends adapted to engage with the interstices of the Walls, reinforcing collars surrounding the aforesaid ends to prevent fracture thereof, means securing said plates and 'collars permanently to the putlogs, in combination the auxiliary plates having curved surfaces contacting the under surfaces of said putlogs with straight surfaces for insertion in the .Walls of the structure and means for the detachable attachment of said auxiliary plates to the putlo s.

A support 'for scaffolding comprising a putlog having the kerfed ends contiguous to the structural Walls armed with elench plates having curved engaging ends, endless bands reinforcing 'said kerfed ends, auxiliary plates obviating twistl of the put-log 1n a Working position, means Vfor the attach ment of said plates and bands and a series of spurs permanently situate remote from the kerfed end adapted to increase the holding' capacity of said putlogs When contacting Iwith the perpendicular uprights.

In testimony whereof I have aixed my signature, in presence of two Witnesses.

THOMAS H. KINGSTON. Witnesses:

Grenen T.; RAND, MANUEL S. MELLO.

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