US1320804A

US1320804A - Bkiggs

Info

Publication number: US1320804A
Authority: US
Publication date: 1919-11-04
Anticipated expiration: 1936-11-04

Description

J. c. SQUAREBRIGGS. TROLLING LINE SINKERQ APPLICATION FILED MAR, 31. me.

INVENTOR JZ/kes 6. JQUa/Z/j/Wi 5 Patented Nov. 4, 1919.

. where the hooks j NI E STATES PATEN OFICE. 1

mmns csananniamees, or nonr'n VANCOUVER, BRITISH COLUMBIA, CANADA.

TnoLLINe-Lmn SINK-ER.

To all whom it may concern:

Be it known that I, JAMEs C. SQ'UARE- BRIGGS, a citizen of the Dominion of Canada, residing at North Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Trolling-Line Sinkers, of which the following is a specification.

This invention relates to a means for taking down a fishing line to therequired depth for deep water fishing, and is designed to supersede the heavy sinkers at present used for this purpose.

In deep water trolling a heavy sinker is commonly required to counteract the lifting tendency of the water against the upwardly inclined line as the same is drawn through the water. These sinkers are so heavy as to be awkward to lift over the side of the boat, and if the movement of the boat is stopped they rapidly carry the line to the bottom get caught on the rocks and marine weeds. i

It is to avoid these conditions that the sinker, which is the subject of this/application, has been devised. 'In it the weight is only sufficient to insurethat it is fully immersed and it is carried down by the reaction: of the water on inclined vanes or fins 30 l projecting from each side:

The invention is fully described in the following specification, reference being made to the drawings bywhich it is accompanied, in which,

- l3ig11re lis a side elevation showing the sinker in the position of balance at the required depth, and

Fig. 2 is a; plan of the same.

In these drawings 2 represents the body."

of the sinker which may be of any suitable material, preferably cast iron-.or lead, to the upper side of which the trolling line 9 is connected adjacent the front end 'at 8. To the underside of the body 2 and adjacent the rear end the bait line 11 is connected at 10.'

Secured across the'front end of the body 2 to'project symmetrically from each side of it ata slight upward incline beckward is of the body 2 is secured the aftervane 5 which is of the leading vane3. Similarly across the rear end relatively larger area. Secured to'this after vane '5 to project vertically above and a short distance below :it is an upright fin 7 the plane of which may be in the plane of Specificationof Letters Patent. Applicationfjfiled March 31; 1919. Serial No. 286,246.

Patented Nov. 4, 19 19.

the axis of the body, as shown in Fig. 2, or may be angled to one side or the other from that axis as required.

The rear edges of the leading vanes 3 are upwardly turned near their tips, as at 4, and the corresponding part of the rear vanes 5 are downwardly turned, as at 6.

As this vaned body is drawn through the water by its trolling line 9'its weight will initially carry it below the surface, and the reaction of the. water on the incline of the front vane 3 will'tenol to tilt the front end ofthe body 2 downward, while the downwardly turned angle of the rear vane 5 will tend to tilt the after end upward. The

. sinker is thus drawn down deeper in the water against theupwa/rd pull of the line 9, and this downward movement will. continue until the tension of the trolling line 9 and the drag of the bait line 11, balance the water pressures reacting on the vanes 3 and 5.

The vertical vane 7 preserves the flight ofthe sinker against lateral deviation and invention, I hereby declare that what I claim as new and desire to be protected in by Letters Patent, is:

1. A trolling line sinker, comprising the combination with an elongated body having provision adjacent one end for connectingit to the'trolling line and adjacent the other end for connecting the bait line to it, vanes secured to the body'to project from each side and angled in relation; to a horizontal plane through they axis of the-body to direct the leading end of the body downward by the pressure ofthe water on the vanes.

2, A" trolling line sinker, comprising the combination with an elongated body having provision adjacent one end for connecting it to the trolling line and adjacent the other end for connecting the'baitlineto it, ofa vane secured to each end of the body to symmetrically project'from each side, the

forward vane being inclined upward andthe after vane downward from'the forward edges backward.

' 3. Atrolling line sinker, comprising the combination with an elongated body havlng provision adjacent one end for connectin it to the trolling line 'and adjacent the pt er end for connecting the bait line to it, of a vane secured to each end of the body to symmetrically project from each side, the forward vane being inclined upward and the after vane downward from the forward edges backward, and a vertically disposed Vane adjacent the after end. v 4. A trolling line sinker, comprising the combination with an elongated body having provision adjacent one end for connection of it to the trolling line and adjacent the opposite end for connectionof the bait line to it, vanes projectingfrom'each side and angled to direct the leading end of the body downward with the reaction of the water, and a vertically disposed vane for maintaining it against lateral deviation. 5'. A trollin line sinker, comprising the combination wlth an elongated 'body having provision adjacent one end for connection I 'downward. H

In testlmonywhereof I afiix my signature. 60

of: it to the trolling line and adjacent the opposite end for connection of the bait line to it, a vane secured across the leading end to project symmetrically from each side, the

leading edge of the vane being in a straight horizontal line and the surface of the vane angled upward and backward therefrom, a similar vane of relatively larger area secured to and projecting-across the after end, the

surface of which is inclined downward backward and a vertical vane secured to and pro- 1 jecting upwarctand backward from the rear vane. 40

6. A trollingline sinker, comprising the combination with an elongated body havin provision adjacent one end-for connection 0 it to the trolling line and adjacent the opposite end for connection of the bait line to it, a vane secured across the leading end to project symmetrically from each side, the leading edge of the vane being in a straight horizontal-line and the surface of thevane angled upward and backward therefrom, a similar vane of relatively larger area, secured to and projecting across the after end, the surface of which is inclined downward backward, and vertical vane secured to and projectingnpward and backward from the rear vane, the after edge of the tips of the leading vane-bein turned upward and v the same parts of thea ter vane being turned a I JAMES C. SQUAREBRIGGS.