US759130A - Bicyclist's globe. - Google Patents

Description

PATENTED MAY 3, 1904.

A. EOSENTHAL.

BIGYGLISTS GLOBE.

APPLIOATION FILED MAR. 1, 1904.

NO MODEL.

GHZWQ Inn In THE Noun-s PETERS cu k Pmndumm WASHINGTON, n c.

UNITED STATES Patented May 3, 1904.

PATENT OFFICE.

BICYCLISTS GLOBE.

SPECIFICATION forming part of Letters Patent No. 759,130, dated May 3, 1904.

k Application filed March 1,1904. Serial No. 196,092. (No model.)

To ctZZ whom it may concern.-

Be it known that I, ARTHUR ROSENTI-IAL, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Bicyclists Globes, of which the following is a specification.

My invention relates to improvements in bicycle-whirls or implements for use in expert bicycle-work; and its objects are, first, to provide a latticed globe with which the bicyclist may attain sufiicient momentum and have sufficient structure so that he may ride beyond the vertical center until he assumes nearly an inverted position upon his wheels; second, to render said globe sufliciently rigid to withstand the centrifugal force of the bicyclists and their wheels when acquiring momentum for the dash to the inverted position in the globe, and, third, to so construct the globe that it may be readily assembled or taken apart for shipment. I attain these objects by the mechanism illustrated in the accompanying drawings, in which-- Figurel is an elevation of the globe. Figs. 2, 3, 4t, and 5 show sections of the ribs or framework with appliances attached for readily assembling the sections of the globe. Fig. 6 is a section of the top and bottom caps on the line or m of Fig. 7; and Fig. 7 is a plan of the same, showing a portion of the globe around it.

Similar letters refer to similar parts throughout the several views.

In the construction of this globe I use angled steel ribs a, to one wing of which I firmly rivet a network of band-iron Z), forming several sections each independent of the other sufiicient to form a perfect globe, as shown in Fig. l, the network 6 of band-iron rendering it easy for the audience to see the bicyclist ride within. For the tops and bettoms of the globe I form a circle a of the angle-iron and support a network-capj therein, so that the Wheels will pass over them smoothly and without danger of injury as they pass over the rings. I provide for so securing the sections together that they may be readily taken apart or reassembled when desired by passing pins it or their equivalents through holes 71', through theflanges a of the ribs (6, or the flanges t" of the band 27, and pressing the flanges firmly by means of conveniently-constructed eccentrics, substantially shown. In Figs. 2 and at, f represents the body of the clamp, which has an integral pin it, that passes through the flange a, as shown in Fig. 2, when the handle 7 is thrown around to the position shown in Fig. I and indicated by the dotted lines in Fig. 2, and draws the flanges snugly and firmly together. In Fig. 5 I show another form of eccentric applied as a direct clamp upon the flange, and in Fig. 3 I show a simple lever-clamp to be used with a detached pin. This clamp hooks under the pins and has a wing or bearing on either side of the flanges, so that the ribs may be held firmly together thereby.

To facilitate entering into and emerging from the globe, I place a door cin convenient position for the purpose and secure it in any convenient and safe manner to insure an even surface for the passage of the wheels over the lines of connection with the section-walls of the globe.

(Z d represent guy-rods for securing the globe to position when in use, and as many may be used as desired and of any desired or convenient form.

To render the structure of the globe as firm and rigid as possible, I so connect the rims v of the upper and the lower sections that the ribs ("6 will alternate, as in Fig. 1, so that there is no full line of vertical division at any place in the globe, and each overlzmping section of the band 2' of one hemisphere will strengthen the corresponding overlapping sections of the other hemisphere, thus rendering this line of connection practically as firm and rigid as it would be if constructed of a single unbroken band of angle-iron.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In hollowglobe construction sections bordered with angle-iron forming solidly-eonnected frames and intervening network of band-iron securely interwoven and the ends firmly secured to the angle-iron borders, and clamps "for readily assembling and securely fastening the parts together, substantially as and for the purpose set forth.

2. In hollow-globe construction a series of disconnected sections having an angle-iron border on four sides and a network of bandiron interwoven and securely attached at the ends, to the borders, a door in one section, pins engaging the angle-irons,and eccentrics for forcing and securely holding the angleirons of adjacent sections together forming a latticework globe, substantially as and for the purpose set forth.

3. In hollow-globe construction, a series of properly-formed detached sections each constructed with a border of angle-iron ribs, a network of band-iron interlaced and securely attached, at the ends, to the borders, said secary 27, 1904.

ARTHUR ROSENIHAL. In presence of MARTIN ROSENTHAL, I. J. GILLEY.

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