US1275499A - Radial head-gate. - Google Patents

Description

K11. THORSBY. KA DIAL HEAD em. APPLICATION HLED DEC. l9. I916.

Patented Aug. 13, 1918! 2 SHEETS-SHEET l- WITNESS By 160/! v ATTORNEYS.

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APPLICATION FILED DEC- 19. 916.

' Patented Aug. 13, 1918.

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UNITED strarns PATENT air me,

KARL J CHAN 'THORSBY, OF OAKLAND, CALIFORNIA ASSIGNOR"TO CALIFORNIA conaoenrnn CULVERT COMPANY, or OAKLAND, CALIFORNIA, abosrona Tron or CALIFORNIA.

RADIAL" HEAnGATE.

Specification of Letters fatent. Patented Aug. '13 1918;

Application filed December 19, 1916. Serial No. 137,918.

I To all whom it may mm.-

Be it known-that I, KARL JOHAN THORSBY, a subject of the King of Norway, residing at Oakland, in'the county of Alameda and State of-California, have invented certain new and useful Improvements in Radial Head-Gates, ofwhich the following is a specification. e

. My invention relates to the class of head or control gates for canals, ditches and flumes, and more particularly to the type of radial gates. I

The object of the invention is to provide a gate of the described type which is light .in weight, and therefore cheap to manufacture and easy to install and operate, and which, at-the same time, is sufficiently strong to be durable under continuous use.

With this object in view, my invention consists in the novel construction hereinafter described with reference to the accompanying sheets of drawings, wherein t Figure 1 is a front elevation ofv my gate, part of the face thereof being broken away Fig. 2 is a sectional plan view of the gate and its pier, taken in the direction ,of the.

arrows on the line 22 of Fig.3.

Fig. 3 is a sectional end elevation taken in the direction of the arrows on the line 3'3 of Fig.2. Y

Fig. 1 is a sectional detail of one of the pivot pins and the mounting therefor.

Fig. 5 is a perspective detail of one of the adjustable supporting brackets for the end frames.

Fig. 6 is a perspective detail of the pivotpin-block upon which the bracket shown in Fig. 5 is mounted.

In the drawings, the reference numerals 1 and 2, designate respectively, the bottom and the side walls of the pier or portion of the flume within which the gate operates, said pier being preferably constructed of concrete. The gate proper comprises a radial frame-work, presently to be described,

. which is pivoted, in a horizontal plane, at

its clown-stream side upon pins 3 mounted in the side pier walls 2, which frame carries a face member 41, formed as a segment of a cylinder whose axis is the line of the pivot 3;

The face 1 is constructed of corrugated sheet metal, as illustrated, such construction providing the greatest strength, to resist the pressure of the water, with the least weight of, material. The reinforcing corrugations best lie'in vertical planes, that is from top to bottom or transverse of the face, as. this disposition, being in the width of the face, givesto it the greatest rigidity. The frame of the gate comprises spaced horizontally disposed members 5, preferably of angle section, to which the. face 4 is sccured in any desired manner, and radially disposed end members 6, extending from said horizontal members toward the pivots. Diagonal braces 7 are provided to support the horizontal members being the end mem ,bers, said diagonal braces being connected byhorizontal tie bars 8. Vertically disposed chord members 9, extending between the outer ends of the alined upper and lower end members 6 and diagonal braces 7, prevent the separation of said outer ends and the, flattening or buckling of the face.

The inner ends of the end members 6 and p the braces 7 ofeach end of the frame conpivot-1')in-blocks-' 12, Figs. 3, 4 and 6. The

edges of said blocks are formed withflange's 13, which engage beveled faces14= in the sides of the bracket apertured-members'11, and thereby hold said blocks ,within said members. The blocks 12 are providedwith holes 15, to receive the inner ends of the pivot pins 3, the ends of said pins lying within socketmembers l6 secured to the pier walls 2, or as shown in Fig. 2, embedded in said walls.

Said blocks 12 are further provided, on

their inner faces, with lugs 17 throughwhich is passed a retaining pin 18, lying 95 over the end of the pivot pin 3 and retaining the same in position as shown in Fig. 1. The blocks 12 are adjustable, radially,

within the apertured members 11 of the- I socket members 10, and. set'screws 19, Fig. 100

3 are provided in said brackets, for clamping said blocks against shims 20. The sides V 2 of the pier have segmental arcuate guide flanges 21, Figs. 2 and 3, preferably formed of angle members embedded in the concrete, 105

against which lie, in close relation, the overlapping ends 22, Fig. 2, of the face 4:. The

position of the face 4L relative to'said guide flanges 21 is adjusted by means of the shims 20 and the set screws19, the entire gate 110 being shifted radially with respect to its pivot pins 3. A comparatively tight joint can thus be made between theends 31-2 of the face and the guide flanges 21, without rendering the gate inoperative through excessive friction. This joint is made possible by the fact of the corrugations of the face running vertically so that the ends 22 may be flat and seat accurately on'the flat guide flanges 21 For raising and lowering the gate, I have shown a windlass 23, Figs. 1 and 3, mounted upon a bridge 2 t extending across the pier over the'gate, said Windlass having a cable 25 wound uponits drum and attached to the gate face at 26.

It will be readily understood that on account of the peculiar construction of my gate, involving the use of a stiff but exceedingly light corrugated face supported upon a light skeleton frame, I am enabled to make a very much lighter and consequently less expensive gate than any now known to the art, and moreover that the installation of such a gate will be less expensive and its operation easier, than is the case with the heavier'types in present use.

I claim 1. A head-gate of the radial type comprising a face formed as a segment of a cylinder; a skeleton frame for carrying said face comprising radially disposed end members; a supporting bracket to which the inner ends of the radial members of each end are connected; .a pivot block carried by each bracket and adjustable radially thereof; and a means for pivotally supporting said blocks in the axis of said face.

2. A head-gate of the radial type comprising a face formed as a segment ofa cylinder; a skeleton frame for carrying said face comprising radially disposed end members; a supporting bracket to which the rinner cends of the radial members of each end are connected; a pivot block carried by each bracket and adjustable radially thereof; a fixed socket member mounted adjacent to each block; a pivot pin passing through said block and into said socket member and lying in'the axis of said face; a pair of lugs projecting outwardly from the exposed face of saidblock; and a removable retaining pin passing through said lugs and preventing its outward removal; and

a pin pivota-lly connecting said block-and;

said socket member in the axis of said face. In testimony whereof I have signed my name to this specification :in the presence of' two subscribing witnesses.

KARL J OHAN THORSBY.

' IVitnesses:

IV. E. CooHRAN, E. H. WmBEN.

Ccpies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washin gtoli, D. '0.

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