US612581A - Thirds to reuben knerr and otto gessner - Google Patents

Description

No. s|2,5s|. Patented Oct. I8, I898. P. BONUS.

SAFETY GATE FOR DRAWBRIDGES.

(Application filed Oct. 6, 1897.) I {No Model.) 2 Sheets-Sheet I.

No. 6|2,58|. V Patented-Oct; 18, I898.

, P. BONUS;

SAFETY GATE FOR DRAWBRIDGES.

(Applicflion filed Oct. 6, 1897.) (No Model.) 2 Shee tsShaa t 2.

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llnrrnn STATES ArnNr Orricn.

PETER BONUS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OETWO- TI'I'IRDS TO REUBEN KNERR AND OTTO GESSNER, OF SAME PLACE.

SAFETY-GATE FOR DRAWBFHDG ES.

SPECIFICATION forming part of Letters Patent No. 612,581, dated October 18, 1898.

Application filed October 6, 1897- To all whom it may concern..-

Be it known that I, PETER BONUS, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new an d useful Improvements in Safety- Gates for Drawbridges, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain improvements in safety-gates for drawbridges and like structures, and has for its object to provide an improved form of gate which may be operated automatically by the tnrnin g of the draw-section or by suitable devices operating independently of the movement of the drawsection.

In the accompanying drawings, Figure 1 is a sectional elevation on the line 1 1, Fig. 2, of a safety-gate constructed in accordance with my invention. Fig. 2 is a transverse sectional elevation of the same on the line 2 2, Fig. 1. Fig. 3 is a view similar to Fig. 2, illustrating a modification of the invention, and Figs. 4 and 5 are perspective details more specifically referred to hereinafter.

Referring to the drawings, A is the turn or draw section of the bridge, mounted on rollers a, which are adapted to travel on an annular track a in the usual manner. At the extreme end of the section'A is secured a rackbar I), which intermeshes with the teeth of a gear-wheel 13, mounted on a shaft 1), arranged in suitable bearingson the shore-piers. The turn-section A is guided and partly supported at its opposite ends by a rail 0, adapted to grooved wheels O, mounted in a frame 0.

The shaft b is arranged at about the longitudinal center of the roadway,and on either side are short shafts D D, on which are se cured sprocket-wheelscl d, respectively, the two sprocket-wheels being connected to each other by a link belt 6. On the shaft D is also situated a sprocket-wheel f, connected by a link belt g to a sprocket-wheel G on the cen tral shaft 1), the arrangement of the various sprocket-wheels and link belts being such that on the movement of the turn-section A the shafts D D will be revolved in opposite directions.

Each shaft D I) is made in two or more see- Serial No. 654,208. (No model.)

On the roadway at each end of the turn- .section are two safety-gates I I, the gate I being located at a point very close to the edge of the turn-section and the gate I being located at some considerable distance therefrom-say forty or fifty feet--in order to arrest traffic before a too-close approach to the edge of the turn-seotion.

i The roadway-gates 2' are pivoted at Ya to vertical posts K and are so arranged that they may assume either a vertical or horizontal po sition to close or to open the roadway. Each of the sprocket-wheels d d is provided with a crank-pin Z, connected by a link L to the gate-sections 1', and in a similar manner the outer end portions of theshafts D D are pro vided with disks M, having crankpins on, connected by links m to the gate-sections of the gate 1', so that on the turning of the operating-shaft both gates will be opened or closed at the same time.

To the side rails or to suitable posts on the sides of the roadway are pivoted secondary gates N, which may be moved across the footpaths on either side of the roadway by links 41, which connect them to the gate-sections i. The lower ends of the gatesN are weighted, as at n, in order that they may normally tend to assume a vertical position.

In operation the turning of the section A causes a rotative movement of the shaft 1), which movement is transmitted by the connecting link belts to the shafts D D and so effects, through the crank-pins Zm, the turn ing of the gate-sections to either the open or the closed position.

I11 some cases, where it is not desirable to effect the opening or closing of the gates by the movement of the turn-section, I may employ a suit-able electric motor I, connected by gearing p to one or other of the gate-operating shafts D I), the shafts being coupled together by the link belts e and sprocketwheels d d, so that they will be operated siinultaneousl y.

Having thus described my invention, what I claim, and desire to secure by Letters Patout, is-

1. In combination, the turn or draw section of a bridge, safety-gates arranged in pairs at each end of the turn-section, each pair of gates being separated and placed at different intervals in the length of the roadway, with mechanism connecting the pairs of gates and adapted to simultaneously effect the opening and closing of the same, substantially as specified.

2. The combination, with the turn-section of a bridge of safety-gates arranged in pairs at each end of the turn-section, each pair of gates being separated and placed at dilterent intervals in the length of the roadway, operating-shafts extending between the pairs of gates and adapted to effect the opening and closing of the same, and couplings arranged in the length of the shafts to permit expansion or contraction. of the sections thereof, substantially as specified.

3. In combination, a rack-bar carried by the turn-section of the bridge, a gear-Wheel mounted .upon the stationary section of the bridge and with which said rack-bar is adapted to mesh, a sprocket-wheel carried upon the same shaft with the gear-wheel, sprocketwheels G and d, a chain for connecting the first-named sprocket-wheel with the Wheel f, a wheel carried upon the same shaft with the wheel f, a crosschain for connecting the wheels (Z d,crank-pi11s carried by the sprocketwheel, links attached to said cranks, gates supporting posts, gate-sections pivoted there to and with which said links connect, secondary gates N, and links a connecting said secondal" gatesto the main-gate sections, substantially as specified.

In testimony whereof I affix my signature in thepresence of two witnesses.

PETER BONUS.

Witnesses:

DAVID GOODBREAD, J. .Iosnrri STRATTON.

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