US815254A - Hoisting-support. - Google Patents

Description

"No.815,254. P PATENTED MARrlS, 1906.

' G.A .BARNE S & A. E. GRONIN.

I HOISTING SUPPORT. APPLICATION FILED Nov. 20. 1905.

' STATES,

PATENT OFFICE.

CHARLES A. BARNES ANDALEXANDEE E. ORONIN, or SPRINGFIELD,

MASSACHUSETTS.

HOISTINGL-SUPPORT.

To all whom it may concern;

Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Hoisting-Supports, of which the following is a full, clear, and exact description. I O

This invention relates to hoisting devices, and more particularly to quickly-arranged means on the roofs of buildirigs for the attachment and support of suita e hoisting-tackle. The principal object of the invention is to ,provide a simple and strong device of, the I above-described class' of hoisting-framesor roof-irons, as they are sometimes called,

which combines in one construction a hoist-5 ing-frame equally efficient and available on flat roofs or'on the ridge or sloping portion of gable-roofs.

Another object of the invention is to provide a safe and reliable means for quickly ad-,

, justing and securingthe hoisting-frame on whatever'form of roof it is used.

. and arrangement of devices and in the construction of certain of the parts, all substan- I Q tially as hereinafter fully described, and set forth in the claims. p In the drawings, Figure 1 is a perspective view of the hoisting-frame as used uponajflat root. Fig. 2 is a perspective view of the manner of using the same frame upon the ridge portion of a able-roof, and Fig. 3 is a perspective view 0 the hoisting-frame as secured in hoisting position upon the sloping the ridge thereof. so

gable end portion of a gable-roof and below Fi 4 isa perspective view illustrating afurt or feature hereinafter referred to. I

gular frame portion of the hoisting-framev In the drawings, A represents the rectanand consists in two side frames B and B,

ortable appara-' tuses, such as used by truc men and piano and safe movers for providing a safe and.

v attachment 0 are the unction of which will be later described.

which are connected together by the hinges Be it known that we, OHAELEs A. BARNEs. and ALEXANDER E. CRoNIN, citizens ofthe- United States of America, andresiden'ts of b b, the pintle of these hinges being a stout bar O, which passing through the said hinge portions issecured in its position therein by y the nut c at what will be called the rear end of the hoisting-frame and by a ring-eye a at the front or hoisting end.

Patented March 13, 1906.

The side frames B and B, which are iden- I tical in construction, consist of the lengthwise-extending flat side bars 01, and have formed at or adjacent each end thereof and projecting at right angles therefrom the short end bars e. junction with the side bars d are slightly bent upwardly, as clearly shown in Fi 1 at w, to

= compensate for the thickness 0 the hinge portion, which is a part of the bars e; otherwise the side bars (I would not engage the roof-surface in a flat osition, as is desirable.

I At the front end of t e roof-frameA the side bars d are extended beyond the junctionpoint of the front end bars e and'are bent downwardly, as shown at f, and are each provided with a erforation or hole 9 for the f tackle-supporting chains E. The side bars (1, adjacent the rear end thereof, rovided with fastening-rings h and j,

The previously-referred-to tackle-supporting chains E comprise a stout ring 74, to which the hoisting-tackle of any suitable type may be attached, usually by hooking the up er block of a fall and tackle thereto, as il us- These end bars e at their trated in the drawings. The intermediate connection of this ring 76 with the bent end portions f of the hoisting-frameA is by means of three separate and divergent chains, which are linked to the ring 76. Two of these chains m and n are of equal length and consist of several links terminally provided withhooks m and n, respectively adapted to engage the holes g'in the side-bar ears f when the hoisting-frame A is used on a flat roof, as in Fig. 1 or on the ridge portion of' a gable-roof, as in Fig. 2. When the chains E are'adjusted'for use on a flat roof, as in Fig. 1, there is a tendency of the downward strain on the divergent chain parts m and n to draw the side-bar ears f toward each other, causing a buckling Ioo up of the hinged central portion of the frame.

To resist this tendency, a short chain 0, which, as shown in the drawings, may consist of but one long link 0 and a-hook 0 is connected to thering 7c between" the chains m I and n by its link 0 and to the ring a of the hoisting-frame by its hook 0, whereby a portion of the strain brought thereon coming onto the central or hinged portion thereof prevents raising of the frame from a level engagement with the roof. Any tendency of the rear end of the hoisting-frame to raise upward from the roof or to be drawn forwardly from its proper position is prevented by the ropes g, which are attached to the rings h of the hoisting-frame by one end, the other ends being taken to a skylight, chimney, or other suitable place of fastening on the roof. In case the most available place for adjusting the hoisting-frame on a gable-roofed house is the ridge portion thereof the short link and chain 0 0 is unhooked from its engagement with the ring a, and the side frames B and B are then permitted to buckle at their hingejoint, as shown in Fig. 2. The strain on the hoisting-frame at this time comes entirely on the ears ff, which causes the angularlyadjusted frames B and B to tightly engage the ridge portion of the roof. Any tendency of the rear end of the hoisting-frame to rise upwardly away from its contact with the roof is prevented by the ropes g, which in this case are best secured by taking the free ends thereof downwardly on either side of the roof to the eaves and from thence across the gable end of the house and there knotting their end together, as shown in Fig. 2. If the most available place for adjusting the hoisting-frame is on the sloping portion of a gable-roof, to one side of the ridge thereof, an

equal and correct draft or strain on the hoisting-frame is best secured by an adjustment of the chain F, as shown in Fig. 3, which is by attaching the short chain 0 to the lower positioned side-bar ear f and by attaching one of the chains m or n to the central ring a of the hoisting-frame. In this manner of using the hoisting-frame the rope g is used in a manner similar to that shown in Fig. 2, and a second rope connection 19 may be advantageously used, as shown in Fig. 3, and is attached to ring 3' of the side frame portion B for the support of the forward portion of the hoisting-frame.

In Fig. 4 is shown a lever 8 arranged at the rear end portion of the frame A the same being by shackle t pivotally connected to the hinge rod or bar C and has a fulcrum bearing on a cross-bar u, which extends across the frame and in bearing on the side members B B. 'An extra man or boy by maintaining a downward pressure on the rearwardly-extended lever will easily and effectually maintain the frame in its proper position during the use of the device without the necessity of making the hitches or anchorages by rope, as shown in Fig. 1.

We claim- 1. In a hoisting-support a frame ada ted for immovable maintenance on a roo -top and to have an end portion thereof overhang the roof and provided at such overhanging portion with chains or like connections secured to opposite points of said frame and converging downwardly and connected and affording, at such point of connection, support for a tackle.

2. I11 a hoisting-support, a frame having means for anchorage on a roof-top and provided with downwardly-extended lugs,cl1ains or like connections secured to said lugs, and converging downwardly and connected, and affording at such point a connection-support for a tackle.

3. In a hoisting-support a frame adapted for immovable maintenance on a roof-top and to have an end portion thereof overhang the roof, and provided at such overhanging part with connection members, hook-ended chains detachably engaged in said connection members and downwardly convergent, and a ring connecting the approached ends of said chains.

4. In a hoisting-support a frame ada ted for immovable maintenance on a roo -top and to have an end ortion thereof overhang the roof, and provi ed at such overhanging portion with connection members f f arran ed in opposition and also with an interme iate ring or eye, hook-ended chains detachably engaged with said connection members and downwardly convergent, a ring 7c connecting the approached ends of said chains, and a chain-like or flexible connection also engaged with said ring and having a hook for detachable engagement with the aforesaid intermediate eye of the frame.

5. A frame adapted for immovable maintenance on a roof, formed with opposite side sections hinge connected, whereby such frame may be adapted to rest on fiat or angular roofs, and having tackle-supporting means at its end portion which is adapted to overhang the roof.

6. In a hoisting-support a frame adapted to rest on a roof-top and havin an endwise portion adaptedto overhang the roof, and provided with depending tackle-supporting appliances, and said frame provided at its rear end portion with ring-eyes to enable connections thereat of anchoring ropes or cables.

7. In a hoisting-support a frame ada ted for an immovable rest on a roof-top and having an endwise portion adapted to overhang the roof, and provided with depending tacklesupporting appliances, and said frame provided at one or both of its side portions with attachment members for making connection therewith of anchoring-ropes.

8. In a hoisting-support a frame adapted for an immovable rest on a roof-top and having an endwise portion adapted to overhang the roof, and provided with depending tacklesupporting appliances, and said frame provided at its rear end portion with ring-eyes,

an immovable rest upon a roof-top and to endwise overhan the same, and formed with an intermediate ongitudinal hinge comprise ing a pintle or rod 0, the forward end of which extends beyond the forward end of the hinged frame, and is constructed with an eye, and said frame having at its overhanging forward end depending appliances forSupportin a tackle and a further supporting and reinorcin link andhook connection adapted to detac ably engage the eye-formed end of said hinge-rod.

10. A frame, adapted to rest on a roof-top,

and having a forwardly-endwiseoverhanging ortion providedwith hoist-supporting.

app lances, and said frame having at lts rear portion a lever pivotally engaged therewith and rearwardly extending, and means for affording a fulcrum-bearing for said lever rearward of its pivotal engagement with the frame. 1

Signed by us at Springfield, Massachusetts, in presence of two subscribing Witnesses.

. CHARLES A.v BARNES.

,ALEXANDER E. ORONIN. Witnesses:

W '8. BELLOWS, G. R. DRrsooLL.

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