US3651554A

US3651554A - Nailed board removing device

Info

Publication number: US3651554A
Application number: US46579A
Authority: US
Inventors: Francis A Herbert
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-05-12
Filing date: 1970-05-04
Publication date: 1972-03-28
Anticipated expiration: 1989-03-28

Abstract

An apparatus for salvaging nailed boards used in the building of temporary roads over marsh land etc. The apparatus includes a frame having a fixed and a movable jaw adapted to grip a board therebetween and a rocker heel member about which said jaws are pivoted to raise the board from its support. Means are provided to close the jaws and pivot the frame about the rocker heel. The apparatus also includes a shaker conveyor for advancing thus removed boards to a nail bending device and thence to a board stacking device.

Description

Unite States Patent [151 3,651,554 Herbert [451 Mar. 28, 1972 54 NAILED BOARD REMOVING DEVICE 3,525,503 8/1970 Herbert 254/124 [72] Inventor: Francis A. Herbert, PO. Box 81,

schriever, 70395 Primary Examiner-Thomas H. Eager Attorney-Wilkins0n, Mawhinney & Theibault [22] Filed: May 4, 1970 [211 App]. No.2 46,579 [57] ABSTRACT Related s Application Data An apparatus for salvaging nailed boards used in the building I of temporary roads over marsh land etc. The apparatus in- [60] Dms'on of N 3 May 1969 cludes a frame having a fixed and a movable jaw adapted to f i g g g g of grip a board therebetween and a rocker heel member about 6 a an one which said jaws are pivoted to raise the board from its support. 52 U.S.Cl. ..29/200 B, 29/2001) 254/124 Means are Pmvided jaws and the frame [51] Int. Cl ..B2 3p 19/00 about the rocker heel The apparatus also includes a Shaker 53 Field f Search g 200 D, 200 200 3; 25 24 conveyor for advancing thus removed boards to a nail bending device and thence to a board stacking device.

[56] References Cited UNITED STATES PATENTS 6 Claims, 4 Drawing Figures Patented March 28, 1972 3,651,554

3 Sheets-Sheet 2 FIG.3

INVENTOR FRANCI$ A. HEBERT MMLMWJ+3%% Patented March 28, 1972 3 Sheets-Sheet 5 INVENTUR FRANCIS A. HEBERT W KDMQM NAHLED noARn REMOVING DEVICE The present invention relates to a NAILED BOARD REMOVING DEVICE and this application is a division of application Ser. No. 830,184, filed May 12, 1969, now U.S. Pat. No. 3,525,503, granted Aug. 25, 1970, which in turn is a continuation-in-part of my presently pending similarly titled application Ser. No. 590,907 filed Oct. 31, 1966, now abandoned.

This invention has for an object to take up board road lumber more commonly employed with and about oil rigs and the like where a road into soft fill or marsh areas is made of wood to accommodate heavy equipment which must be trucked into and out of the area incident to drilling an oil well. When the well is brought in and the equipment removed, the need for the heavy duty road is no longer necessary and the lumber employed must be salvaged. Heretofore this has been a manual job requiring many man hours of labor and resulted in time delay as well as expense.

Board roads of the type described have a top layer of boards nailed to bottom longitudinal runners with 50 penny nails. The boards are 3 inches by 8 inches and vary in length from 8 to 16 feet. The device of the present invention clamps opposite sides of a board and rocks it it hydraulically as to pull the nails out of the under boards and thereby free the board for reuse elsewhere.

A still further object of the present invention is the provision of a frame unit which may be attached to a crawler unit and which not only removes the boards but which shake the mud loose, bends the nails and stacks the boards for reuse.

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views:

FIG. 1 is a side elevational view of the entire apparatus of the present invention.

FIG. 2 is a fragmentary perspective view of the nail bending means of the present invention.

FIG. 3 is a top plan view of the apparatus of FIG. 1.

FIG. 4 is a vertical transverse section taken on the line 44 in FIG. 3 at a magnified scale.

Referring now to FIGS. 1 and 3, 56 designates a crawler unit having two tracks, the unit being propelled by a prime mover 57. Facing the machine from the front on the right hand ends of FIGS. 1 and 3, the board shaker and propelling means 58 is shown having two longitudinal runners 59, 60 between which are rotatably mounted rollers 61 having serrated circumferentially spaced projections 62. Each roller 61 is individually driven by a hydraulic motor 63 receiving its supply from a main hydraulic motor 64 driven by the prime mover 57. The motors 64 are controlled by valves 65 on the operators control deck 66.

Rearwardly of unit 58 is the nail bending means 67, as best seen in FIG. 2 which comprises a pair of rollers 68, 69 hydraulically driven and having projections 70 extending from the periphery thereof to engage nails extending from boards to flatten same against the boards.

Located rearwardly of the nail bending means 67 is a further shaker conveyor unit similar to 58 which receives the boards which have had mud shaken therefrom and the nails therein bent flat for transfer to a board stacking means 71 having base supports 72 and top clamping jaws 73 actuated by cylinders 74 for confining the boards into a bundle until a chain sling can be wrapped thereabout for transportation to a site of reuse.

Referring now to FIG. 4, the entire unit is bolted in place on a crawler tractor unit having crawlers 56, a subframe 75 supports the board shaker and propelling unit 58 and a platform 76 supports the swivel mount 79 for the board removing device 25 mounted on the boom or dip stick M. The swivel mount may be rotated about its vertical axis by a motor chain drive with sprocket 80. The operators seat 81 is secured on platform 76 accessible to controls 82 for moving the crawler forward or rearward causing the board removing device 25 to remove boards as described herein before.

IN OPERATION The unit is rested upon the boards and the movable jaw 35 is closed by actuation of the cylinders 38, 39.

Thereafter tilt cylinder 54 is actuated to pull up on the front of the primary guide means through the movable jaw 35 causing the unit to pivot-about trunnions 26 and to rock on heel plates 31, 32 which removes the board as best seen in FIG. 1. The boom carriage is then swung over to remove the board and the jaws opened and the unit put back in origin position to remove another board.

The hydraulic power for opening the device of the present invention comes from the hydraulic plant 64 on the crawler unit 56 and is regulated through suitable valve controls 65 known to those skilled in the art.

The boards are then swung over to the shaker and propelling means 58 where the projections 62 on rollers 61 driven by hydraulic motors 63 heat the board to shakemud from it while advancing it to the nail bending means 67 where the boards enter between rollers 68, 69 and projections 70 bend the nails extending from the board flat there against while providing a positive gripping and propelling action to move the boards rearwardly while continuing to beat mud from them and to position the thus cleaned boards for transfer to the board stacking means 71 where they are stored until a sufficient quantity has been collected to form a bundle for reuse at which time a truck having a winch and A-frame places a chain sling around the boards for transport to a site where a new board road is being laid.

Although I have disclosed herein the best forms of the invention known to me at this time, I reserve the right to all such modifications and changes as may come within the scope of the following claims.

I claim 1. An apparatus for salvaging nailed boards comprising a jaw actuated board removing device, a nailed board receiving conveyor positioned to receive boards having nails extending from one side thereof placed thereon by said board removing device, shaker and propelling means on said conveyor for removing mud from the boards, nail bending means on said conveyor positioned to receive boards from said shaker and propelling means, and board stacking means positioned to receive boards from said nail bending means.

2. For use with a self-propelled vehicle frame, an apparatus for salvaging nailed boards comprising a main frame adapted to be mounted on the vehicle frame for movement therewith a jaw actuated board removing device swivelly mounted on said main frame, board shaker and propelling means carried by said main frame and positioned to receive boards having nails extending from one side thereof and placed thereon by said board removing device, nail bending means carried by said frame and positioned along said shaker and propelling means so that each board advanced by said shaker and propelling means passes through said nail bending means to bend all nails extending from the boards substantially flat and board stacking means positioned at the rear of said main frame to receive a stack of nailed boards with the nails bent flat and the boards substantially free of mud for bundling and reuse.

3. An apparatus as claimed in claim 1 wherein the board removing device is swivelly mounted on the main frame on the side of the main frame away from the board shaker and propelling means.

4. An apparatus as claimed in claim 1 wherein said board shaker and propelling means is a series of spaced rotatably driven rollers having spaced serrated projections circumferentially thereabout for pulsatingly engaging the boards to shake mud therefrom and to advance the boards to the nail bending means.

5. An apparatus as claimed in claim 1 wherein the nail bending means is a pair of vertically disposed rollers driven in positive rotation and having nail bending projections extending from the periphery of said rollers, said rolls being spaced to positively grab a board pull it through between the rolls and bend the nails flat and advance the board for placement upon the board stacking means.

6. An apparatus as claimed in claim 4 wherein the rollers of the board shaker and propelling means are individually driven by hydraulic motors.

Claims

1. An apparatus for salvaging nailed boards comprising a jaw actuated board removing device, a nailed board receiving conveyor positioned to receive boards having nails extending from one side thereof placed thereon by said board removing device, shaker and propelling means on said conveyor for removing mud from the boards, nail bending means on said conveyor positioned to receive boards from said shaker and propelling means, and board stacking means positioned to receive boards from said nail bending means.