US74472A - Horace wood - Google Patents

Description

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Brannon'Woon,4 or LEVER'ETT, MASSACHUSETTS.

Lettera'Pctent No. 74,472, dated February 11,1868.

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TO ALL WHOM Ill MAY CONCERN: o

Be itknownl that', HQRAGE WOOD, of Leverett, in the lcounty of Franklin, and State of Massachusetts, have invented `a newaudimprov'cd- Staging-Frame; and I do hereby declare that the following is a full, clear, andexact description thereof, which will enable those skilled in the art to ymake and use the same, reference being had to the accompanying drawings forming part of this speci'cation,

This invention relates to a new and improved staging-frame, designed to facilitate the application of coveringmaterials to the pitch-roofs of buildings. ,l

The invention consists of a framing, constructed in a novel manner, and provided with wndlasses operated in 'a novel way, all arranged as hereinafter fully shown and described, whereby the staging-frame may, with the greatest facility and safety, be raised from the eaves to the peak of thereof, and lowered from the peak tothe eaves by workmen-on the staging-frame. `.[n the accompanying sheet of `drawings-'- 'Figure -1 isuau'elevation-ol` a building having my improvement applied to it.

Figui-e 2, a transverse vertical section of the same, taken in the line :r z, iig. 1. -Similar letters of reference indicate corresponding parts. l v y A A. represents three rectangular frames, each composed of three ormore parallol"bnrs, a, connected or secured at Aa suitahledistance apart by transverse bars b. In the front and rear end of these frames there are inserted rollers, c, andthe severalframes are connected by planks or slats, d, which pass through mortises inthe bars a of. the frame A. If the staging-framey is constructed for a narrow roof, the planks or slatsdmay be obtained long ,enough to extend 'the whole width, but in the generality of cases more than one length of plank vor slat will be required, and their joints are in the central frame A,vin thecentral bara thereof, and are, Vheld together by cords or chains, e', the endsof which areconnected by windlasses,`B, at the outer sidesof the end-frames A A. By means of 'these windlasses the cords or chainswe may be strained perfectly taut, 4and the planks or slats CZ prevented from separating longitudinally,and thewholest'aging therefore kept iirmlytogether. The staging-frame is provided with the platform C C, one, C, at its upper, Aandthe other, C', at its lower end. o These platforms extend the whole length of lthe staging-frame, and theupper one is connected at'r'itsfront edge to the frames A by joints f, and supported at its rear edge by brace-rods y,which arefittel;` anyof :La/series of holes in plates uattached to the frame A.- By adjusl'ng these' brace-rod's-g, the platform C may always have'a horizontal or nearly horizontal position, whatever the angle of thein'clinationofi'the roof maybe. This Y will be fully understood by referring to iig. 2, The'lowcr platform C may. be similarly arranged.`

i 0n the end-frames A of the stagin -frammthere are wiudlasses, D, which .are operated by a screw andl worm-wheclgear, (see ig. 2,) inwhich it* is a worm-wheel ou the ,drum 1I of the win'dlass, andj the screw which gears into the worm-wheel, the screw-shaft beingprovided with a hand-wheel, E, on its outer end. ,'The ropes F of these windlasses pass around pulleys c, one endof said ropes being attached tothe frames A, en which the.

windlassesl are' secured. l, y y 4 c T e'pulleys k are attachedto ropes Z l, which pass over' brackets mum, at ornear the peakfofjt'he roof, and extendd'own to the sill or foundation of the building,.where"they are securedinuainysproper-manncr.

From the above description itwill be seen that the operators on` the'frame may raise and lower the same by turning the windlasses B, and, owing to. the screw and worm-wheel-gearing, by which the-Windlasses `are turned, the latter cannot becasually turned under the weight oi gravity of the'zstagigfframc, und ,the personsv apon it. The device, therefore, is rendered perfectly safe, as no 'adjustmentof paiv'lsoiother parts is necessary to hold the staging-frame, as is the case with other devices forthe same purpose, .and which is 'the cause ofso many accidents; owin'gitca neglect in adjusting said pawls or parte. o I ,'My improved staging-frame possesses the advantageof being' capablelof adaptation to roofs ofhanywidth.

The rollers c admit of the staging-framemcving readily, or with butlittle friction, up or down on the roof.

I claim as new, and desire tofsecure. by Letters Patent- Y l 1. A staging-frame, composed of a series of frames A, connected by planks or slats d, and .provided with 'windlasses B and cords or chains e, all arranged substantially inthe manner as and for' the pnrposeset forth.l

2. ,The windlasses D, applied to two or more framers A, operated bythe 'screw and worm-wheelgear, and provided with ropes F, which pass through, pulleys 7c, attached toV ii'xcd ropes Z, substantially as and for 'the purpose specified. Y

. y .nonnonwoon Witnesses L. El. Moons, WESLEY MoncAN.

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