US1560021A - Log raft - Google Patents

Description

Nov- 3 1925- 1,560,021-

G. G; DAVIS L0G RAFT Filed March 13. 1924 INVENTOR G11. BERT C; 17A v/s.

BY M e ATTORNEYS PATENT DFFICE.

GILBERT G. DAVIS, OF PORTLAND, OREGON.

LOG RAFT.

Application filed March 13, 1924. Serial No. 699,092.

To all wliomit may concern:

Be it known that I, GILBERT G. DAVIS, a subject of the King of Great Britain, and a resident of the city of Portland, in the State of Oregon, of the United States of America, have invented certain new and useful Improvements in Log Rafts, of which the following is a specification.

My invention relates to improvements in log rafts, the objects of which are to provide means whereby a pin 'ality of tiers of logs may be built up and bound together securely, so that the raft can be safely towed through ocean water without danger of loss.

of logs therefrom, a further object is to provide a binding for the logs forming the floor of the raft which will become tighter as the load of legs is imposed upon it.

The invention consists essentially of a plurality of logs laid side by side and transversely bound together bv a series of single ropes or chains to form a floor and a superimposed load of logs laid thereon and bound to form a substantially cylindrical raft, as will be more fully described in the following specification in which Fig. 1 is a cross sectional view of my raft.

Fig. 2 is a perspective view of the raft showing the manner in which the load of logs is bound to the side booms.

Fig. 3 is a cross sectional view showing an alternative method of binding the floor logs.

In the drawings like characters of ref erence indicate corresponding parts in each figure.

In order that the binding means may be more clearly understood the logs and bindings are shown relatively widely spaced, one complete set of binding ropes are shown in a single transverse plane, though in actual practice these would be distributed at suitable distances throughout the length of the raft. Each of the various binding ropes are illustrated in a distinctive way that the manner in which they are passed about the raft may be more clearly followed.

The numeral 1 indicates the raft floor which is formed of logs laid side by side and bound together by a single binding rope 2 which passes completely around the logs and from one log to another. In some instances such as where small logs are used I may prefer to pass the binding rope around two or more logs as shown in Fi 3.

The numeral 3 indicates a pair of side .ends to themselves as at 13.

booms which are preferably formed of sets of logs of different lengths suitably connected together end to end as at 4 (see Fig. 2) and are then bound together either by independent side boom bindings 5 or by any of the various binding ropes of the raft. The rafttloor is boundto the side booms 3 by the binding rope 2 which passes around them and is clamped back upon itself as at 6. To the centre log 7 of the raft floor 1 binding ropes 8 and 9 are secured, the free ends of each being drawn below the raft floor and passed up between the outer edges of the floor and laid out over their respective side booms 3 until the raft is readyfor bindin The raft floor is then loaded with tiers of logs forming a superimposed load 10 which may if very rough water is to be encountered, be bound tier by tier to the side booms or to the raft floor. On completion of the loading a series of binding ropes 11 are passed over the load and around each of the side booms 3, the free ends of the ropes being secured back upon themselves with clamps or other suitable fastenings as at 12. The raft is then ready for tightening up which is accomplished by passing each of the ropes 7 and 8 over the raft, under and around the boom sticks, fastening their free All ropes previously fastened may again be pulled up and tightened, leaving the raft ready for towing to destination.

lVhat I claim as my invention is: 2

1. A log raft comprising a raft floor, of longitudinally disposed logs and asuperimposed load of logs bound upon the raft floor, the binding means of the superimposed load to the floor consisting of ropes fastened to one of the intermediate logs forming the floor and passed under the floor in opposite directions and up and over the load and fastened back upon themselves to the side logs of the raft.

2. A log raft comprising a raft floor of logs disposed longitudinally on either side of a centre stick, side booms to which the floor is bound and a superimposed load of logs carried upon the floor, and binding means fastened to the centre stick passed an der the floor and over the loadand ter1ninated at the side booms to which it is secured for binding the raft together as a whole.

3. A 'lo-g raft comprising alpair of side booms, a plurality of intervening floor logs arranged" side by side, cables wrapped around each floor log and passed from one log to another with the ends of the cables anchored to the side booms, a superimposed load of logs on said floor logs and means for binding said load of logs to the floor logs comprising a pair of cables fastened at one end to an intermediate floor log, said cables being carried under the floor logs in opposite directions and then carried upwardly and over the said load of logs, the ends of said 1 cables being carried downwardly along the sides of the said load of logs and fastened to the side booms.

Dated at Portland, Oregon, U. S. A., this 28th day of January, 1924-. a

" GILBERT G. DAVIS.

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