US625791A - Device for use in erecting bents of ore-docks - Google Patents

Description

N- 625,79*- Patented may 3o,`.|89'9.`V` l` .r. n. mcuuEEN. DEVICE FOB USE IN EBECTING BENTS 0F DRE DUCKS;

(Application filed Nov. 23, 1897.)

No. 625',79l. .Patente May 30, |899.

F. R. MGUEEN.

DEVICE FUR USE fIN ERECTING' BE-NI'SDF OBE DOCKS.

(Application led ov. 23, 1897.) (No Model.) 2 Sheets-Sheet 2.

me Noms persas co, pHoro-umu., WASHINGTON. q. c.

NiTnD STATES 4PATENT OFFICE.

FINLAY n McoUEEN, OF sUPERioawIsoONsIN, AssIeNOR To THE BARNETT a RECORD COMPANY, OF MINNEAPOLis, MINNESOTA.

DEVICE FOR USE IN ERECTING BENTS OF ORE-DOCKS.

SPECIFICATION forming part-of Letters Patent No. 625,791, dated May 30,1899.

Application led November Z3. 1897. Serial No. 659,561. (No model.)

To all whom it may cm1/cern:

Be it known that I, FINLAY R. MCQUEEN, a citizen of the United States, residing at Superior, in the county of Douglas, State of Visconsin, have invented certain new and useful Improvements in Devices for'IIserin Erecting the Bents of Ore-Docks, dac.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it pertains to make and use the same.

My invention has for its object the provision of convenient and labor-saving devices for use in the erection of the bents or like portions of docks and other structures; and my improvements consist of the novel devices and combinations of devices hereinafter fully set forth, and particularly pointed out in the annexed claims.

The improvements are illustrated in the accompanying drawings, in which- Figure l is a perspective view of a part of a dock in process of erection in which the devices of the invention are shown in position for use in the work of building the dock. Fig. 2 is an end elevation showing the devices supported in position on the last-completed bent and also another set of devices being lowered to position for use in the erection of the succeeding bent, and Fig. 3 isa perspective view of the devices as they would appear from the rear.

The dock illustrated consists of the piles 1, 'the sills L2, the uprights 3, the cap-pieces 4., and the longitudinal stringers 5. The sills 2 are usually cut away, as shown at 6, to provide seats for the uprights 3, and when the latter have been erected the cap-piece 4 is applied and fastened in place ,to complete the bent. The several bents when thus finished are permanentlyconnected by the stringers 5, extending lengthwise of the dock, and the structure may also be further tiedand stiffened by braces and struts, if desired. The timbers used in such structures are necessarily heavy, and large numbers of them are required to insure the requisite strength and stiffness of the whole, and the importance and desirability of appliances capable of lessening the amount of manual labor required in prosecuting the Work are obvious.

` against the uprights.

Under customary methods of construction, whether the timbers composing a bent be iirst secured together and then lifted to place as a whole or the several pieces are separately lifted to position, much manual labor is required in guiding and holding the members in place until finally secured.` To the end of dispensing with much ofthe manual labor required under such methods and shortening 6o and cheapening the Work, my improvements propose the use of devices that are adapted to be advanced from bent to bent to hold the uprights of the bent under construction temporarily in place while one after another is being raised and until they havebeen permanently securedintheir desired places.

In making use of the invention it is deemed preferable that devices of the form illustrated in the accompanying drawings be employed, 7o though many other forms of devices of an equivalent character might be substituted -and the same kind'of beneficial results obtained.

In the devices shown in the drawings two platforms of like structure are employed, the front edge of each being arranged to serve the purpose of alining and temporarily supporting the uprights in their respective positions of final use. These platforms 7' are supported 8o by pairs of brackets that are adapted to be hooked onto the cap-piece of the last-completed bent to hold the platforms in proper positions for use by the Workmen until the next bent is completed and then to be advanced one after the other as the work prog'resses. The brackets or frames for support-- ing the platforms may be formed of vertical posts 8, horizontal arms 9, braces l0, connectig the posts and arms, bars l1, connecting 9o the posts, and suitable hooks l2, fastened to the rear top portions of the posts 8 for hangingthebracketsonthecap-pieces. The hooks are preferably of angular form, as shown, and

of a size to fit conveniently over the cappieces, and thus hold the brackets snugly The platforms are su pported on the arms 9 of the brackets and should be of such width thattheir front edges will be in proper line to permit the uprights Ico to be raised to vertical positions and secured Y temporarily to the platforms. Any convenf of the fastening ropes, chains, or other def ient devices may be used for holding the uprights to the platforms, the devices shown being short pieces of rope 13 to be passed around the uprights and fastened to cleats 11i on the platforms. Notches may be formed in the front edges of the platforms to receive the uprights, if desired, but are not necessary to the successful use of the devices.

The platforms, together with their brackets or carriers, preferably are moved bodily forward by means of a crane 15 or equivalent mechanism, and for this purpose a line 16 is shown as having itsends passed through the platform and secured to the brackets and an eye 17'at the middle provided for connecting the block and tackle 18, and thus enabling the devices to be readily lifted and advanced. It will be found convenient to have the line 16 so connected that the platform will tilt backward, in order that when lowered to the new position the hooks.12 will readily catch the rear edges of the cap-piece, as indicated in Fig. 2. i y

In putting the devices of the improvement to use it is found desirable to employ two or more such platforms as have been described, whose aggregate length is equal to the width of the dock, rather than a single platform reaching from side to side, so that one platform may be used in finishing one port-ion of a bent, while the other is advanced to position to receive the uprights for a section of the next bent, as indicated in the drawings. In use a platform being in place in front of a completed bent uprights are raised one by one by means of the crane'or otherwise to vertical position and lashed fast or held by means Vices 13 in proper positions against the front of the platform until the desired number are so placed, when the cap-piece is put on and secured. The bent or section of bent is then held from lateral movement, preferably by temporary stringers 19, or, if desired, by braces (not shown) or other devices until the permanent stringers 15 are placed and fastened. When the temporary fastenings have been applied, the platform can be lifted bodily by attaching the rope and tackle of the crane to the eye 17 of the line 16 and advanced to engage the last-laid cap-piece and assume proper position in front of the`ne-W bent.

It is obvious that the horizontal portion of the hook 12 could be made long enough to span two or more cap-pieces and that the brackets and platforms could thus, or in any other ways that are well known, be made to maintain'their proper positions without the use of the exact form of hooks hereinbefore described, and likewise the structure of the brackets and the manner of connecting them with each other and with the platforms and the structure and form of the platforms may be changed considerably Without varying their functions or modes of operation.

l The crane and the engine and other machinery used in connection with them are mounted on the dock (or other support) in rear of the portion that is being erected, and these mechanisms are on movable beds or platforms 20, so that they may be advanced from time to time as the successive stages of the work may require.

I do not herein seek to claim, broadly, invention of means for temporarily securing uprights in position by the use of alinementbeams and carriers and platforms for workmen adapted to be advanced as bents or portions of building-frames are completed, forI am aware that it has long been old in the building art to employ such labor-saving devices; that in building grain-elevators under the Spaulding patents, Nos. 204,103 and 268,743, it was common as early as 1880 to use alinement-beams having notches to receive the studs and hold them temporarily in place and to support the alinement-beams on movable carriers and to use platforms for the workmen when necessary and to advance such devices from bent to bent as the Work progressed, and that like means were employed in the building of large metal coal-sheds; but

Vhat I claim, and desire to secure by Letters Patent, is-

1. In a device for use in erecting the bents of docks or other structures, the combination with brackets adapted to be detachably secured at the front of a bent, of a body supported thereby and adapted to serve to aline the uprights' of the succeeding bent as they are erected, substantially as set forth.

2. In adevice for use in erecting the bents of docks or other structures, the combination lwith brackets adapted to be detachably secured at the front of a bent, of a body supported thereby and adapted to serve to aline and temporarily support the uprights of the succeeding bent as they are erected, substantially asset forth.

3. In a device for use in erecting the bents of docks and other structures,the combination with a completed bent, of brackets detachably secured thereto, a body supported on the brackets adapted to aline the uprights of the succeeding bent as they are erected, and devices provided thereon for holding the uprights in alinement until they are otherwise secured in place, substantially as set forth.

4. In a device for erecting the bents of docks or other structures, the combination with brackets connected to form a framework and having hooks for removably suspending them from the cap-piece of a bent, of a platform supported thereby and adapted to serve both as a foot-board for Workmen and asa meansv for alining the newly-erected uprights, and means for temporarily securing the uprights when so alined, substantially as set forth.

In testimony whereof I have hereunto set my hand this 19th day of November, 1897. FINLAY R. MCQUEEN. In presence of RICHARD PAUL, C. E. KNIGHT.

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