US446708A - Canal-look - Google Patents

Description

(No Model.)

H. O. HARRISON CANAL LOGK. No. 446,708. `Patented Feb, 17, 1891.

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SPECIFICATION forming part of Letters Patent No. 446,708, dated February 17', 1891.' I

Application filed July 8, 1390. Serial No.358,lll. (No model.)

To all whom it may concern,.-

Be it known that I, HENRY C. HARRISON, a citizen of the United States, residing 'at Poto mac, in the county of Montgomery, State of Maryland, have invented certain new and useful Improvements in Canal-Locks, of which the following is a specification, reference being had therein to the accompanying drawings.

rlhis invention relates to certain new and useful improvements 'in canal-locks; and it has for its objects-among others, to provide an improved device of this character which shall be eicient in operation and wherein provision shall be made for ready repairs when. necesi sary and for the prevention of clogging of the guideway for the gates.

I form the gates of sections flexibly connected together, so as to permit of their be-4 ing wound np within ya caisson, and yet when extended shall form a water-tight gate. I

provide sluiceways in sonne or all of the gatesections with means for manipulating the valves when desired. I provide automatically-falling gates to cover the guideways for the gates as the latter are drawn in, so as to prevent the accumulationof mud and other foreign substances on the screw or guideway. I provide movable bridges which serve as guides for the upper ends of the gates proper, and also as a bridge to permit access to the sluice-valves when the gates are closed. Y

Other objects and-advantages 'of the inven tion will hereinafter appear/,fand 'the novel features thereof 'will bejspecilically defined' by the appended claijns.

The invention is clearly illustrated in the accompanying drawings, which, with the letters o f reference marked thereon, form apart vof this specification, and in which.- v

Figurel is a View illustrating my improve-A ments with one side in rear elevation and the other in vertical section. Fig. 2 is a top plan of the same. Fig. 3 is a vertical crossfsection through one of the gates proper. Fig. 4 is a.

vertical cross-sectional detail through a gate, showing the valve for Waterbalancing the gate. Fig. 5 is a detail showing a section of .thelower gate.

y Like letters of reference indicate like parts throughout the several views. I Referring now to the details of the drawvseen at the right of Fig. 1.

lgates are secured.

ings by letter, A designates a caisson 0r tower of suitable construction supported upon s uitable foundation, there being one upon each side of the canal orlock.

B is a vertical shaft supported in suitable its lower end a beveled pinion B', which is stepped upon a suitable step or toe b, preferably of lignum-vitae, secured withina suitable '.bearings'within the caisson and carrying at recess b', as shown to the right of Fig. 1..

This beveled pinion is preferably arranged toride upon roller-bearings a, as seen'atf vthe .Y

Art the lower'end of the caisson' is an up-" wardly-extending vflange a', which serves as 'a' i guide for the lower inner face of the gate, Yas This flange may be a wheel ffast upon and moving with the shaft B, and npon said shaft there are fast two other wheels B2, provided with lugs b2, asA

seen best in Fig. 2, to which lugs the flexible Upon the upper end et' the shaft B there is a beveled pinion @which meshes with a beveled pinion b4 on' the shaft B3, supported in.

suitable bearings and arranged to lbe actu-l ated from anyflsuitable source of power.

tate the shaft B, and consequently the pinion B. I

C are the gates proper, each consisting of a plurality of water-tight sections c, tapered` vertically, as seen in Figs 1 and 3, and each section composed, preferably, of b oiler-ii'on stayed by inclined braces c', as shown 1n Figs. l and 3. These sections are hinged together Not shown.) Rotation of this shaft will ro upon their. adjacent rear faces by means of suitable hinges c, as seen in Figs. l and 2,- andthe inner edge of the inner section is if v pivotally connected with the lugb2 of the):v

wheels on shaft B, as shown at c3 in Fig. 2.

,This inner section is also made tapering in gates are tapered vertically, being larger attheir base. where the greatest pressure is 1o IOO lbe sustained, as readily seen from the drawings. The gate-sections are formed upon their vertical edges one with a V-shaped Aor analogous projection C1* to engage a corre- 5 spondingly-shaped recess C5 in the adjacentedge of the adjacent section, asclearly shown in Fig. 2, so that when the gate is extended, as seen at the left of Fig. 2, water-tight joints will 4 be formed between the sections, and pressure of the water thereon will only tend to more firmly bind them together, as will be readily understood.

The gates are provided in some or all of ltheir sections with sluiceways (1 6, which are 1 5 controlled by the Valves C7, which are tapered,

-as shown in Fig. 3, and designed to move in suitable ways of guides, as seen in said figure, their movement being regulated by means of vertical rods D, provided at their upper ends with hand-wheels or other provisions d, by which they are turned, and the valves being designed when raised to be inclosed within the boxing or chamber d in the gate.

'j The gates are opened and closed through the medium of the vertical shafts and the wheels thereon, .to which the gates are attached. l

The gates are guided at their lower ends in any suitable manner. lI prefer, however, to

the nut working through a slot in the upper end of said tube or casing. Anti -friction rollers f are also preferably provided to demoving upon the tracks or guides f as seen vin Fig. 3. v In order to water-balance the gates when desired, I provide the same at the lower edgev of the sections with apertures g, controlled by the valve G, provided'with valve-stems Gr, designedto extend upward within convenient'reach of the operator. y

In order to prevent access of water to the tube or casing F2, I form said lcasing upon its rear .side with a vertical extension F, the inner face of which is provided withl a substantially V-shaped projection f3, which engages and works in a correspondingly-shaped recess 'nthe rearside of the gate-section, as seen g. 3.

I order to prevent accumulation of mud, m f &c., upon the screw or in the guide gates-that is, so as to close in the direction guide them as show-n in Figs. 1 and 2, whereincrease the friction of the parts, said rollers fonytlie gates, I provide hinged lower gates of the pressure of the water, as seen in Fig. 3. These gates are formed `in overlapping sections, as' seen in Figs. 1, 2, and 5 ,"so arranged that each Isection may move inde-v pendent of the. other. When'the gates C arc closed, these gates lievertically, as shown in Fig, 3, against the said gates C; but as said gates are opened the pressure of the water against the gates H closes them down over the screw or the guideways for the gates, as seen in Fig. 1. The outer or rst sections of the gates C are provided with a plow or nose-piece C8, adapted to enter beneath the sections of the gates H -as the gates C are moved outward, and thus force them out or up,l as willA be readily understood; At the entrance of the caisson I provide a hinged gate I, which is 'moved outward by the gates C as they are opened and automatically closed by the pressure of the'water to seal the vcaisson as the gates are closed, as seen in Fig. 2.

J are 'bridges hinged, as at' j, to any suitable'support or breastwork and designed to be elevated 'upon their pivots by means of cords or chains -J, attached to their outer ends and connected lwith any suitable hoist,- ing apparatus. (Not shown.) These bridges embrace the upper ends of the gates C and serve as guides therefor, Ias seen in Fig.

They are lowered into position while the gates are open, and the gates when closed arc guided at -their upper ends thereby, said bridgesbeing provided with longitudinal central openings'- for the passage of the valvestems D as the gates are closed. These bridges will be formed of` any suit/able material and form a walk to support the operator when he has occasion to operate the sluiceivalv'es or serve as a lfoot-path across the canal.

- The wheels upon the shaft are skeleton wheels, as shown, vso as to provide ready access to the parts for the purpose of repair,

allowing of the ready separation of any two Vsections of the gatein case of damage thereto, and the whole contents of the caisson may be removed bodily, if desired.

Various ymodificationsi in details may be resorted to without departingfrom the spirit of or sacrificing the advantages of the invention.

'hat vI clailn'is- 1. In a canal-lock, thc combination, with a caisson, of a flexible gate adapted to be drawn within said caisson, substantially as Specified.

2. In a canal-lock, the combination, with a caisson, of a hinged sectional gate adapted to be wound upon a shaft within said caisson, substantially as specified.'

3. In a canal-lock, the combination, with a caisson,of a flexible gate composed of hinged interlocking sections adapted to be wound within said caisson, substantially as speci tied.

4. An improved lock-gate formed of hinged interlocking sections, substantially as shown and described.

IOS

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caisson formed with tapered outlets, of a flexible gate having its inner section tapered to conform to the taper of said opening, substantially as specified.

f5. In acanal-lck, the combination, with the caisson, o'f a iiexible gate adapted to be wound therein and an automatically-closing gate to the entrance of the caisson, substantially as specified.

caisson and the movable gates, of the lowerl hinged gates, substantially as and for the purpose specified.

f 8. In a canal-lock, the combination, with the caisson and the movable gates and the guide for the lower end thereof, of the hinged gates adapted to automatically close the guideway eis ne gates are opened, substantially as speci- 9. In a canal-lock, the combination, with the caisson, the gates, and the guideway, of the hinged lower gate and the nose upon the movable gate, substantially as and for the purpose specified.

10. In a canal-lock, the combination, with the caisson and the movable gates, of the' hinged lower gates'in overlapping sections, substantially as specified.

\ 1l. In a canal-lock, the combination, with the caisson and the movable gates, ofthelower hinged gates in overlapping independentlymoving sections, substantially as specified.

12. In a canal-lock, the combination, withv 'the caissomthe vertical shaft, and the wheels thereon formed with lugs, of the gates in hinged interlocking sections, the inner one of which is pivotally connected to said lugs, substantially as specified.

15. In a canal-lock; the combination, with the caisson and the vertical shaft, of the wheels thereon, the gate, the horizontal screw,fand connections between said shaft, screw, and gate, substantially as specified.

16. vIn a canal-lock, the combination, with the caisson, vertical shaft, and the wheels thereon, of the flexible gate connected with said wheels, the horizontal screw to which the gate is attached, and the beveled pinion on f the screw and shaft, substantially as and for 7. In a canal-lock, the combination, with the the purpose specified. i

17. In a canal-lock, the combinatiom'with thecaisson, the vertical shaft, the tiexible gate connected therewith, and the horizont-al screw', of the nut secured to the gate and engaging the screw, and connections, substantially as described, between the shaft and screw, as and for t-he purpose specified.

18. In va canal-lock, the combination, with the caisson, vertical shaft, the wheels thereon, exible gate pivotally connected with said wheel, and the screw', 0f the beveled pinion on the screw, beveled pinion on the shaft meshing therewith, and the nut secured to the lower edge Iof the gate and engaged by the screw, substantially vas specified.

19. The combination, with the casing F2, having the vertical extension provided with inward projection, of the movable gate provided with corresponding depressions to engage said projection, substantially as and for the purpose specified.

20. The combination, with the gate and the Vnut secured thereto, of the casing, the screw arranged thereinV and engaging the nut, and the anti-friction rollers on tle gate traveling on the upper face of thecasing,substantiallv as described.

21. The co1nbination,`with the movable gate, of the pivoted bridge adapted to serve as a guide to the upper end of the gate, substan` ltially as specified.

22. An improved loclcgate formed in hinged interlocking sections, some ot` which are provided with sluiccways controlled by adjustable valves.

Intcstimony whereof I allix my signature in presence of two witnesses.

HENRY C HARRISON.

Witnesses:

R. J. BEALL, Jr., E. Il. BOND.

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