US1811899A

US1811899A - Reenforcement for poles

Info

Publication number: US1811899A
Application number: US166213A
Authority: US
Inventors: George B Spring
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-05
Filing date: 1927-02-05
Publication date: 1931-06-30
Anticipated expiration: 1948-06-30

Description

- 9;? 911931. 6. 8: SPRING REENFORCEMENT FOR POLES Filed Feb. 5. 19,27

5 s eets-sheet 1 June 30, 1931. a. B. SPRING REENFORCEMENT FOR POLES Filed Feb. 5. 1927 3 Sheets-Sheet 2 June 30, 1931.

G. B. SPRING REENFQRCEMENT FOR POLES Filed Feb. 5, 1927 3 Sheets-Sheet 5 ATTEIRNELI;

Patented June 30,1931

OFFI

GEORGE SPRING, OF NEWTONVILLE, MASSACHUSETTS REENFOR-CEMENT non. roLEs Application fiiearebruar 5, 1927'. seriaim. 166,213.

The desirability of anchoring the em beddedportions of the reenforcement to the poles has been shown in practice, and it is therefore the object of the present invention to provide means whereby each reenforcement may be locked to the embedded portion of the pole at one or more points for example, near the lower end of the reen'forcement and at a point intermediate the ends thereof, but below the surface of' the earth so that the resistance which the earth offers to the embedded portion of the pole may be added to the resistance which the earth offers to the reenforcement in preventing swaying movement of the pole in case the pole is pretty well rotted through at the surface of the earth.

Vith the foregoing object in View, my in- 1 vention comprises a reenforcing member provided with means-such as a dog for securely anchoring the member to the pole after the same has been set, andit will be understood of course that the inventioniis applicable to new poles, as well as old ones which have be: come weakened by decay.

My invention comprises various other improvements hereinafter more fully described and pointed out in the appended claims for simplifying the constructionsshown in my prior patents and increasing the efficiency. of the same;

In the drawings accompanying and forming a part of this specification- Figure 1 is a side View of a reenforcing member embodying my invention;

' r Fig. 2 is a front elevation of said member;

Fig. 3 is a side View showing two of the members illustratedin Figs. 1 and- 2applied to a telegraph pole; v I

Fig.4 is asection taken'on the line 4'1 of Fig.1; y

Fig. 5' is a horizontal sectlon taken onthe linen-5 of Fig. 3;

- Fig.6 is a side view of a modification;

Fig. 7 is a front elevation of said modification;

Fig. 8 is a: sectiontaken' on" the line8'8 of Fig. 6;

f Fig. 9 is a section taken on thebroken line- 9-9 of Fig. 6; i i

Fig. 10is a side View of another embodiment of my invention;

Fig. ll is a front elevation of the reenforcing member shown in Fig. 10;

Fig. 12 is a vertical sectionon an enlarged scale of the lower portion of the reenforcing member shown in Fig. 10 'illustrating the application of the same to awooden pole.

In the particular drawings selected for more fully disclosing the principle of my invention and which of course are to betaken reenforcing member having a concave'face or flange 21 shaped generally to conform to the contour of the pole 22 and provided with a centrally-arranged longitudinallyextending web 23. Preferably two such members 20 are applied to the opposite sidesof a pole, as indicated in Fig. 3, and'th'e upper ends thereof may be clamped to the pole by any suitable means such as the plates 24 and dogs 25, as more fully described in my prior Patent No. 1,584.4 05, referred to above.

The" reenforcing members preferably are formed with side ribs 26 to strengthen the constructiom as indicated in-my Patent 1,561,193,- above mentioned, and oppositely-disposed enlargements orv fian e wings 27 27 preferably are formed thereon near the lower end thereof, and also at a point intermediate it's ends and just below the ground line to increase the bearingv surfaceof: the reenforcing member on the pole.

Associated with each reenforcing'member is a device which may be driven into the pole after the same has been set and the reenf'orcing members have been driven in place in order securely toanchor' or lock the pole and reenforcing members together. Several such locking devices are shown in the accompanying drawings.

In that embodiment of my invention illust-rated in Fig; 1 the locking device is a dog 28 pivotally connected at 29' to the web'23,

the outer end of said dog being provided with a trigger 29 with which a driving rod such as the rod 30, may engage to rotate the dog about its pivot and cause its sharpened inner end to enter the pole, as shown in Fi 3. In order to guide the driving pole, guiding means are provided, such for example, as the lug 31 bored to receive the lower end of the rod, said lug being in the present instance formed integral with the reenforcing member, and the upper guide 32 secured to the web 23 by the nut 33, or other suitable means. A housing 34 is formed integral with the web immediately below the dog for protecting the latter while the reent'orcing member is being driven into the earth. The rod 30 is inserted in the

guides

31, 32 before the reenforcing member is placed in position against the pole, either by driving or else by digging out the earth around the pole, as set forth in my prior Patent No. 1,561,193.

The upper ends of the reenforcing members are then clamped to the pole by the plates 24 and dogs 25, and then by means of a sledge hammer, the rod is driven downwardly, thereby forcing the pointed ends of the pivoted dogs into the pole and securely locking the embedded portions of the reenforcing members to the embedded portion of the pole.

It will be noted that the reenforcing member has its greatest width approximately at the ground line where it is subjected to the maximum strain and tapers therefrom toward both ends. The web 23 preferably has its greatest width approximately at the ground line and tapers toward its ends. This web 23 offers considerable earth resistance to any lateral movement of the reenforcing member. In other words, the resistance of the earth against the web 3 will resist any tipping of the reenforcing member in the earth caused by swaying of the pole.

In the modification shown in Fig. 6, the pivoted dog 28 is housed within the slot 35 formed in the lower portion of the web 23, said dog being arranged to swing around the stud 36. In this instance, for guiding the drive rod 30, a guide 57 is formed integral with the web immediately above the lower pivoted dog, and an upper guide 38 is provided at a point about midway between the ends of the reenforcing member. A second locking device such as the dog28 may be employed at an intermediate point, and in the present instance, such dog is shown housed within a slot in the web, and pivoted to the reentorcing member by the stud 39. The dog 28 being near the ground line, no guide is required for the drive rod 30. It will be understood of course that after the lower dog has been driven into the pole, the rod is removed and employerL to drive the upper dog home.

In the construction shown in Fig. 10, the lower end of the reenforcing member is formed with a housing 40 curved downwardly to prevent undue resistance to driving the member in position and provided with a centrally-arranged passageway 41, terminating in an opening in the face of the mem her so that the curved spike 42 placed in said passageway may be driven home into the pole by the drive rod 30 after the reenforcing member has been driven in the ground beside the pole. A block of hard wood 43, or the like, may be used to wedge the spike in position while the reenforcing member is being driven into the ground; and during the op eration of driving the spike into the pole, said block will act to keep the end of the drive rod against the spike.

The intermediate portion of the reenforcing member may be attached to the pole by a spike 4i driven through the opening 45 which passes through the flange and web of the reenforcing member at a point immediately below the ground line.

It is understood of course that a locking device such as the spike 14 may be employed instead of the upper dog 28 shown in Fig. 6, and that the curved spike 12, or similar device may be used in place of the lower dog 28 in the form shown in Fig. 6 in conjunction with the dog 28, and also that any suitable types of locking device relatively movable with respect to the reenforcing member and adapted to be driven into the embedded portion of the pole, may be used for locking the pole and reentorcing member together. If the pole has become pretty well weakened by decay at the surface of the earth then the strength of the pole at the weakened portion may be relatively small. If this condition obtains then the butt of the pole or the portion there of embedded in the earth below the decayed portion would be of relatively little value in preventing any swaying of the pole and the entire resistance to swaying movement of the pole wouldhave to come on the reenforcin g members unless said reenforcing members are locked to the pole butt by means having sui'licient strength to transmit the force of the swaying movement of the pole from the reenforcing members to the pole butt. My invention provides for just this. Any tendency of the reenforcing member to tip in the earth as the pole swings will be transmitted to the pole butt so that the earth resistance to the swinging of the pole will be that offered by the pole butt in addition to that offered by the reenforcing members. v

Having thus described illustrative embodiments of my invention, without however limiting the same thereto, what I claim and desire to secure by Letters Patentis 1. A reenii'orcement for poles comprising a reenforcing member constructed and ar ranged to be set into the earth opposite one side of a pole, means for clamping the reenforcing member to the pole above the earth,

and means relatively movable with respect to said member and constructed and arranged to be driven into the embedded portion of a pole for locking said member to said pole and by which the tilting force applied to the reenforcing member in resisting movement of the pole is transmitted to the embedded 7 portion of the pole.

2. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth against one side of the pole, means for clamping said member to the pole above the earth, and means pivotally connected to said member for locking said member to said pole below the earth.

3. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth against one side of a pole, said member having a concave face to fit said pole, and a longitudinallyextending centrally-arranged web at right angles to said face, a dog pivoted to said Web and having one end arranged to pass through an aperture in the face of said member, a trigger formed on the other end of said dog, a rod co-operating with said trigger and extending substantially the length of said memher, and means for guiding the longitudinal movement of said rod.

4. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth against one side of a pole, said member having a concave face to. fit said pole, and a longitudinallyextending centrally-arranged web at right angles to said face, a dog pivotally connected to said web near the lower end thereof, a dog pivotally connected to said web intermediate the ends thereof, and means for moving said dogs about their respective pivots after the pole has been set to drive said dogs into said ole.

p 5. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth against one side of a pole, said member having a concave face tofit said pole, and a longitudinallyextending centrally-arranged web at right angles to said face, the lower portion of said web being provided with a slot, and a dog arranged within said slot and pivoted to said web.

6. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth at one side of the pole, means for clamping said member to the pole above the earth and a dog pivotally connected to said member and constructed and arran ed to be driven into said pole below the cart r v 7. A reenforcement for poles comprising a reenforcing member constructed and ar ranged to be set into the earth against one side of the pole, a dog pivotally connected to ,see 7 said member and constructed and arranged to be driven into said pole, a trigger on the end of said dog for co-operation with a driving member and a guide for said driving member.

8. A reenforcement for poles comprising a reenforcing member constructed and arranged to be set into the earth against one side of a pole, said member having a face shaped to fit said pole and a longitudinallyextending web and also having an aperture, and a dog pivotally connected to said web and having one end thereof adapted to pass thriough said aperture and be driven into said p0 e.

In testimony whereof, I have hereunto subscribed my name this 4th day of February, 1927.

GEORGE B. SPRING.