US258548A

US258548A - blunt

Info

Publication number: US258548A
Authority: US
Publication date: 1882-05-30
Anticipated expiration: 1899-05-30

Description

(No Model.)

W. S. BLUNT.

STAND FRAME FOR HOISTING.

No. 258,548. Patented May 80,1882.-

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WVILLIAM S. BLUNT, OF NEW YORK,

ATENT Trice.

N. Y., ASSIGNOR TO GATHARINE s.

BLUNT, OF SAME PLACE.

STAND-FRAME FOR HOiSTING.

SPECIFICATION forming part of Letters Patent No. 258,548, dated May 30, 1882.

Application filed April 28, 1882.

To all whom it may concern Be it known that I, WILLIAM S. BLUNT, of the city, county, and State of New York, have invented, made, and applied to use an Improved Stand-Frame for Hoisting and Lowering Barrels or Cargo, for Derricks, for W eighing-llfachines, and other Purposes; and I do hereby declare that the following is a full, clear, and correct description of the same, reference beinghad to the accompanyingdrawings, and to the let ters of reference marked thereon, in which- Figure 1 is a view of my improved standframe folded. Fig. 2 is a view of the same opened for use. Fig. 3 is a view showing in detail the mode of manufacture.

In the drawings like parts of the invention are pointed out by the same letters of referonce.

The nature of the present invention consists in improvements in the construction of standframes for the purposes indicated, as more fully hereinafter set forth, the object of the invention being the production of a stand-frame that shall be compact, possess great strength, and one that can be afforded at a low price to the consumer.

To enable those skilled in the arts to make and use my invention, I will describe the construction and operation of the same.

A shows a strong hollow rod, usually formed of iron pipe, having a screw-thread, a, cut on both ends ofsufficientlength to allow three Ts, B, to be successively screwed upon it at each end, and these Ts are screwed upon the rod A, so thatonethread isleftbe'tween eachT, and thus a free but firm, smooth hinge movement is secured for the entire upper part; of the frame, the upper rod moving and each of the six Ts moving separately and independently. To the two extreme outside Ts two upright tubes, 0, of equal length are screwed in with right and left elbows E at the lower ends facing each other, and a bottom rod or tube, D, of the same length as the red A is screwed into (No model.)

these elbows E, binding the whole together and forming the outside half of the frame. The inside halfoftheframe is similarly formed, two upright tubes, F, being screwed into the two next outside Ts, and being connected and firmly braced at the bottom by a rod, G, sufficiently long to allow this second portion of the frame to be folded within the outside frame. The remaining Ts are supplied with hooks or rings 1), as may be required for supporting or swinging purposes. They have, with the outside Ts or hinges, a free, firm, and independent movement, combining great strength in all directions, with economy in use, as the screw-thread otfers a much larger wearingsurface, and its V shape causes it to make its own thread in wearing, white the frame is bound together with great strength.

To prevent the frame opening too far when in use, chains H are applied half-way up to divide the leverage upon the top hinge, and at the same time assist the upright tubes in supporting a heavy weight or vertical strain.

The frame thus constructed will be found particularly useful for hoisting or lowering purposes and for weighing purposes, and the suspension-pointsthe Ts provided with the hooks or rings Z1-are placed where the frame affords the greatest vertical support.

Having now set forth my invention, what I claim as new is- In a stand-frame for hoisting or lowering purposes, the combination ofthe following elements: a screw-threaded rod, A, the Ts B, the upright rods (J and F, the right-hand and left-hand elbows, E, and the bottom rods, 1) and G, the same being constructed and operating substantially as and for the purposes set forth.

WILLIAM s; BLUNT.

In presence of WILLIAM V. H. HloKs, A. SIDNEY DOANE.