US3883107A

US3883107A - Load carrying bed with adjustable anchor

Info

Publication number: US3883107A
Application number: US411695A
Authority: US
Inventors: Otis W Ashworth; Gordon C Holden
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1973-11-01
Filing date: 1973-11-01
Publication date: 1975-05-13
Anticipated expiration: 1992-05-13

Abstract

A device for mounting large heavy loads of various sizes to a loadbed. Two major anchoring members are slidably attached to a loadbed mounted rail member. One member prevents movement of the load transverse of the rail member and the other member, in conjunction with loadbed mounted slotted bar members located adjacent and parallel the rail member, prevents movement of the load longitudinal of the rail member.

Description

PMENIEB MAY 1 (H975 SHEEI 10F 4 I LOAD CARRYING BED WITH ADJUSTABLE ANCHOR BACKGROUND OF THE INVENTION This invention relates to a device for mounting large heavy loads of various sizes to a loadbed and more particularly to a device for mounting such loads to a loadbed that makes it unnecessary to modify loadbed structure for various size loads, once the device has been mounted to the loadbed.

When securing large heavy loads to a loadbed, especially when the loadbed is part of a transport vehicle, the usual practice is to custom make means for mounting such loads to the transport vehicle. One method of securing a load, such as a power transformer, to a railcar type steel loadbed entails placing structural steel pieces around the periphery of the transformer base and then welding this structural steel to the railcar. The transformer is then bolted to the railcar by burning holes through the railcar floor to receive the bolts or by welding the bolt heads to the railcar. All of this is extremely time-consuming and costly. This attaching method is additionally undesirable due to the fact the welded structural steel must be removed from the railcar by flame cutting and the railcar floor must be restored to its original condition, as nearly as possible, by grinding the weld material after each shipment. When securing loads to wood-type railcars numerous holes are cut in the wood flooring of the railcar in order to fasten these loads securely in place. This invention will drastically reduce these costs and extend the life of such railcars. Securing large heavy loads to stationary loadbeds can create similar time-consuming and costly load mounting and loadbed cleanup problems if the same load securing method is used and the size and/or placement of such loads varies.

Accordingly, it is a principal object of my invention to provide a device for mounting large heavy loads to a loadbed that makes it unnecessary to modify or otherwise degrade loadbed structure to attach a load thereto once the device has been mounted to the loadbed.

Another object of my invention is to provide a device for mounting large heavy loads to a loadbed that is adjustable so that various size loads can be accommodated by and anchored to the loadbed.

It is a further object of my invention to provide a device for expeditiously mounting and demounting a large heavy load to and from a loadbed.

An additional object of my invention is to provide a device that will significantly lower the cost of mounting a large heavy load to a loadbed.

SUMMARY OF THE INVENTION An anchoring arrangement has been devised that is capable of amply and expeditiously securing large heavy loads of various sizes to a loadbed. The anchoring device comprises a rail member, which is permanently attached to the loadbed having two types of clamping members called hold down and blocking members slidably attached to the rail member. The hold down member is moved along the rail to the point where it: is coupled or can be attached to a load. A locking device, such as a shim, is inserted tov prevent movement of the load transverse of the rail member. Bar members having regularly spaced openings are fixedly attached to the loadbed parallel to and on both sides of the rail member. The blocking member has regularly spaced projections extending from it that mate with the regularly spaced openings in the bar members. With the hold down member locked in place, the blocking member is moved as close as possible to the hold down member while at the same time projections extending from the blocking member are in meshing relationship with the regularly spaced projection receiving openings in the bar members. The blocking member is attached to the hold down member and then the blocking member is locked in place with respect to both the hold down member and the bar members. The blocking member is then clamped to the rail member to prevent the regularly spaced projections extending from the blocking member from becoming disengaged from the regularly spaced projection receiving openings in the bar members. The blocking member now prevents movement of the load longitudinally of the rail member. The hold down and blocking members constitute a set and each load being attached to a loadbed requires two sets, one on a first side of the load and the other on the side opposite this first side.

The invention which is sought to be protected will be particularly pointed out and distinctly claimed in the claims appended thereto. However, it is believed that this invention and the manner in which its objects and advantages are obtained, as well as other objects and advantages thereof, will be more readily understood by reference to the following detailed description of the preferred embodiment thereof particularly when considered in light of the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a preferred embodiment of the invention shown anchoring a load, with a T-bar structure extending therefrom, to a loadbed.

FIG. 2 is a plan view of a preferred embodiment of the hold down member and T-bar structure of the present invention, shown partly in section.

FIG. 3 is a sectional view taken along the line 33 in FIG. 2.

FIG. 4 is a plan view of a railcar showing several hold down and blocking member sets of the subject invention, two sets of which are securing a transformer load, shown in phantom, to a railcar.

FIG. 5 is an enlarged view of the end portion of the bar members and stop block shown in FIG. 4.

FIG. 6 is a side elevation of the railcar transformer load and adjustable anchor in FIG. 4.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 1.

FIG. 8 is a sectional view taken along the line 8-8 in FIG. 7.

FIG. 9 is a sectional view taken along the line 9-9 in FIG. 7.

DESCRIPTION OF THE PREFERRED EMBODIMENT The anchoring function of the subject invention is divided into two major parts. One part prevents movement of the load in a plane or group of planes relative to a loadbed and the remaining part restrains movement of the load in a direction generally orthogonal to the plane or group of planes. Referring now to the drawings and more particularly to FIG. I, there is shown the anchoring arrangement of the present invention that prevents both types of movement. In this preferred embodiment the free end of the vertical portion of metal T-rail 12 is welded to metal railcar 14 such that the upper surface of T-rail 12 is generally parallel to the generally horizontal upper surface of railcar l4. Railcar 14 and the placement of the entire anchoring arrangement of the present invention is best seen in FIGS. 4 and 6. A T-bar 16 is inverted and the free end of the vertical portion of said T-bar 16 is welded to the base of transformer 18. Hold down member 20 slidably engages of couples T-rail l2 and T-bar 16. This sliding engagement or coupling arrangement is best shown in FIG. 3 which is a cross-sectional view of hold down member 20 taken along the line 3-3 in FIG. 2. Referring now to FIG. 3 where hold down member 20 is shown having two

channel portions

22 and 24, one, 22, on the bottomof the hold down member 20 and the other, 24, on the top of said hold down member 20. Lip portions 25 of channel 22 overlap the undercut side portions 26 of T-rail 12 and are slidable with respect thereto. Lip portions 28 of channel 24 overlap the horizontal portion 30 of T-bar 16 when said channel portion 24 of hold down 20 is slidably coupled to said horizontal portion 30 of T-bar 16. Shims 32 are then inserted between the horizontal portion 30 of T-bar 16 and lips 28 of channel 24 to urge said load attached T-bar 16 toward said T-rail 12 into an anchored position. Shims 32 also force hold down member 20 upward and away from railcar 14 such that lips 25 of channel 22 engage the undercut side portions 26 of T- rail 12. This arrangement locks load 18 to railcar 14 which prevents movement of load 18 transverse of T- rail 12. 7

Referring again to FIG. 1 for a description of the remaining motion restraining portion of the present invention where blocking member 34 is illustrated whose major function is to restrain movement of load 18 in a direction generally longitudinal of T-rail l2. Blocking member 34 has a rectangular base plate 36 and a pair of rectangular side plates 38 having the same length as base plate 36 fixedly attached at their largest surface area to opposite side edges 40, one plate per side edge, of said base plate 36. A pair of rectangular end plates 42 are fixedly attached at their largest surface area to opposite end edges 44, one plate per end edge, of said base plate 36 and to the ends 39. of said rectangular side plates 38. End plates 42 extend beyond base plate 36 and said side plates 38 and have slots 46 at each extending end of said end plates 42, said slots being utilized when blocking member 34 is bolted to threaded boss members mounted on bracket 37 of hold down member 20 (FIG. 2). Bar members 48 having regularly spaced opening 50 are placed parallel and adjacent to T-rail l2 and are then welded to an upper surface of railcar 14. Side plates 38 have regularly spaced projections 52 extending therefrom that are capable of meshing with, i.e. are complementary with, the regularly spaced projection receiving openings 50 in bar members 48. Stop blocks 53 (FIG. 5) generally rectangular in shape and having the same thickness as T-rail l2 and bar members 48 have an edge, notched in two places to avoid interferring with projections 52, are placed against the ends of T-rail 12 and bar members 48 and: welded to an upper surface of railcar 14 to prevent- Referring now to FIG. 8, which is a cross-sectional view of one of a pair of identically constructed clamping elements on opposite ends of blocking member 34 taken along the line 8-8 in FIG. 7, where channeled shoe member 54 is shown having threaded bolt 56 inserted through beveled clearance hole 58 in channeled shoe member 54. The head 60 of said bolt 56 is inserted through said clearance hole 58 to the point where said bolt head 60 engages channeled shoe member 54 and is recessed below the surface of channeled shoe member 54. Bolt head 60 is then welded tosaid channeled shoe member 54. Channeled shoe member 54 has lip portions 62 that overlap and slidably engage the undercut side portions 26 of T-rail 12. This arrangement permits movement of channeled shoe member 54 logitudinal of T-rail 12 but limits movement transverse of T-rail 12 by the engagement of lip portions 62 of the channeled shoe member 54 with the undercut side portions 26 of T-rail 12. Bolt 56 is inserted through apertured cylindrical collar 64 in base plate 36 of blocking member 34. Cylindrically shaped spring 66 is assembled on blocking member 34 concentric withbolt 56 such that one end of spring 66 engages seat portion 67 of apertured collar 64. Cylindrical cap 68, having an internal diameter that is greater than the external diameter of collar 64 is placed over collar 64 with bolt 56 passing through an aperture in said cap 68 such that seat portion 70 of cap 68 engages the remaining end of spring 66. Washer 72 is placed over bolt 56 and then nut 74 is screwed onto the threaded end of said bolt 56 and tightened until spring 66 is compressed to a predetermined dimension, to produce a spring preload in proportion to the load to be secured. A hole is drilled through nut 74 and bolt 56 and then pin 88 is inserted into the drilled hole to prevent rotation of nut 74 with respect to bolt 56.

Referring now to FIG. 9 where the remaining type of blocking member 34 mounted clamping element is illustrated. FIG. 9 is a cross-section view taken along the line 9-9 in FIG. 7. This remaining clamping element is similar to that in FIG. 8 in that channel shoe member 54 as in FIG. 8, is bolted to blocking member 34 by threaded bolt 75 inserted through beveled clearance hole 76 in channel shoe member 54 to the point where the head 77 of said bolt 75 engages channeled shoe member 54 and is recessed below the surface of shoe member 54 at which point said head 77 is welded to said shoe member 54. A nipple 78 having internal and external threads and a movement restricting shoulder portion 80 at one end is screwed onto bolt 75. The combination of nipple 78 and bolt 75 is inserted through a clearance hole in base plate 36 of blocking member 34 such that said nipple 78 and the threaded endof bolt 75 extend in a direction opposite to that of the regularly spaced projections 52 on sideplates 38 of blocking member 34. Nut 82 is screwed onto and is .welded to nipple 78 such that channel shoe member 54 remains slidable with respect ot T-rail 12.

To secure transformer 18 to a railcar 14 with the attaching arrangement of the preferred embodiment,

-, transformer l8, having a pair of Tbar members 16 atthose portions of the subject clamping device slidably engaging T-rail 12 from moving off the ends of said T- rail 12. The meshing of side plates 38 with bar member tached to its base, is first placed'base downon top of railcar mounted T-rail 12 with vertical portions 17 of ability of space on railcar Channel portions 24 of hold down members are moved along T-rail 12 into full coupling engagement with T-bars 16, Shims 32 are blocking member 34 is moved along T-rail 12 as close as possible to hold down member 20 and still have the regularly spaced projections 52 on side plates 38 of i hold down member 34 in meshing relationship with the regularly spaced openings 50 in bar members 48. Shim 84 (FIG. 1) having spaced apart openings therethrough is then inserted between hold down member 20 and blocking member 34. Bolts 86 are then inserted through slots 46 on end plate 42 of blocking member 34 and then are turned into threaded boss members 35 (FlG.2)' mounted on brackets 37 of hold down member 20, when said threaded boss members 35 are aligned with said slot members 46 and the spaced apart openings in shim 84. The final step in anchoring transformer 18 to railcar 14 is to clamp the regularly spaced projections 52 of hold down member 34 in the regularly spaced opening 50 of bar member 48 in which they are so meshed. This is accomplished by tightening nipple/nut combination 78/82 (FIG. 9) on bolt 75. Prior to this time, preloaded springs 66 (FIG. 8) located on opposite ends of blocking member 34 assist in i I holding regularly spaced projections 52 of hold down member 34 in the regularly spaced,,ppenings 50 of bar member 48. This is a failsafe feature which prevents the regularly spaced projections 52 of hold down member 34 from becoming disengaged from the regularly spaced opening 50 in bar member 48 should nipple/nut combination 78/82 (FIG. 9) loosen on bolt 75. Nut 82,

when tightened, forces lip 62 of shoe member 54 into nonsliding engagement with the undercut side portions 26 of T-rail 12. The force exerted by lip 62 on said side portions 26 is reacted against hold down member 34 which holds regularly spaced projections 52 of sideplate 38 in their meshed position with regularly spaced openings 50 of bar member 48. Bolts 86 are tightened to the point where relative motion between hold down member 20, blocking member 34 and bar member 48 logitudinally of T-rail 12 is prevented.

GENERAL CONSIDERATIONS The preferred embodiment has been described in terms of a load in the form of a transformer and a loadbed in the form of a railcar. This invention is not so limited in its application in that it is possible to use this attaching arrangement with many different types of loads and to attach these loads to both stationary and other types of moveable loadbeds. Use of this device on a highway vehicle such as a load transporting tractor/- trailer is within the scope of this invention.

When attachingthe hold down member 20 of the lsubjedt attaching device to the load to be secured to a within the scope of this invention.

What we claim as new and desire to secure by letters patent of US. is:

1. Apparatus for anchoring a load to a loadbed comprising:

a. a rail member fixedly attached to a loadbed;

b. a T-shaped structure formed of first and second plate-like portions, an edge of said first plate-like portion being attached to a face of said second platelike portion intermediate of the ends of said second plate-like portion such that said first and second plate-like portions are in a generally or thogonal relationship, an edge of said first platelike portion opposite from the attached edge of said first plate-like portion being attached to the base of said load;

c. a hold down member slidably attached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure;

(1. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored position, and to urge said lip portion of the channeled bottom of said hold down member into nonsliding engagement with the undercut side portions of said rail member; and

e. means for preventing movement of said hold down member longitudinal of said rail member.

2. Apparatus for anchoring a load to a loadbed wherein the means for attaching and-locking said load to said hold down member and to said rail member comprises:

a. a T-shaped structure formed of first and second plate-like portions, an edge of said first plate-like portion being attached generally orthogonal to a surface of said second plate-like portion intermediate of the ends of said second plate-like portion, and an edge of said first plate-like portion opposite from the attached edge of said first plate-like portion being attached to the base of said load;

b. a hold down member slidably attached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure;

c. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored position, and to urge said lip portion of said channel bottom of said hold down member into nonsliding engagement with the undercut side portions of said rail member. comprising:

a. a rail member fixedly attached to a loadbed;

b. a hold down member slidably attached to said rail member;

0. means for attaching said hold down member to said load;

(1. means for locking said hold down member to said load and to said rail member to prevent movement of said load transverse of said rail member;

e. a blocking member having regularly spaced projections extending therefrom;

f. a bar member, having regularly spaced projection engaging openings, fixedly attached to said loadbed adjacent and parallel to said rail member;

g. means for attaching and locking said hold down member to said blocking member and to said bar member once the regularly spaced projections on said blocking member are in meshing relationship with the regularly spaced projection engaging opening on said bar member; and

b. means for clamping said blocking member to prevent the blocking member projections meshed in said projection engaging openings in said bar member from becoming disengaged from said projection engaging opening in said bar member.

3. Apparatus for anchoring a load to a loadbed comprising:

a. a rail member, having a top portion and having undercut sides, fixedly attached to said loadbed;

b. a hold down member, having a channeled bottom with lip portions, slidably engaging said undercut sides and said top portion of said rail member;

c. means for attaching said load to said hold down member;

d. means for locking said hold down member to said load and to said rail member to prevent motion of said load transverse of said rail member;

e. a blocking member having regularly spaced projections extending therefrom;

f. a bar member having regularly spaced projection engaging openings, fixedly attached to said loadbed adjacent and parallel to said rail member;

g. means for attaching and locking said hold down member to said blocking member and to said bar member once the regularly spaced projections on said blocking member are in meshing relationship with the regularly spaced projection engaging openings on said bar member; I

h. means for clamping said blocking member to prevent the blocking member projections meshed in said projection engaging openings in said bar member from becoming disengaged from the projection engaging openings in said bar member.

4. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for attaching and locking said load to said hold down member and to said rail member comprises:

b. a hold down member slidably attached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure; and

c. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored 5 position and to urge said lip portion of said channeled bottom of said hold down member into nonsliding engagement with the undercut side portions of said rail member.

5. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for attaching and locking said hold down member to said blocking member and to said loadbed attached bar member comprises:

a. a bracket member fixedly attached to an end of said hold down member, having a threaded opening extending therethrough;

b. an end plate member fixedly attached to an end of said blocking member, havingopenings extending therethrough and having the blocking member mounted end plate member locate adjacent said threaded opening in said hold down member mounted bracket member; j

c. a shim member insertable between a hold down member mounted bracket member and a blocking member mounted end plate member having openings through said shim member that are in the same spatial relation as opening in said bracket member and said end plate member; and

d. a bolt insertable through an opening in said end plate member and said shim member having a threaded end portion, said bolt being screwable into the threaded opening in said bracket member to attach and lock said hold down member to said blocking member and to said loadbed attached bar member.

6. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for clamping said blocking member in said bar member comprises:

a. a channeled shoe member slidably engaging said rail member;

b. a threaded bolt-like member having one end of said bolt-like member fixedly attached to said channeled shoe member and having the threaded end of said bolt-like member insertable through an opening in said blocking member; and

0. means for urging said bolt-like member through said opening in said blocking member and applying a force to said blocking member and said channeled shoe member sufficient to keep said regularly spaced projections extending from said blocking member firmly clamped in said projection engaging openings in said bar member and to urge said channeled shoe member into nonsliding engagement with said rail member.

7. Apparatus for anchoring a load to a loadbed as defined in claim 6 wherein the means for urging said boltlike member through said opening comprises:

a. two outer and one inner of said bolt-like members longitudinally spaced on said channeled shoe member;

b. a cylindrical spring assembled concentrically on the said two outer bolt-like members after said two outer bolt-like. member having been inserted through longitudinally spaced openings in said blocking member such that one end of said spring engages said blocking member;

c. an apertured spring seat assembled on said two outer bolt-like members such that the threaded end of said outer bolt-like member passes through the aperture in said spring seat and said spring seat engages the remaining end of said cylindrical spring;

d. an internally threaded nut screwable on said two outer bolt-like members to the point where said threaded nut engages said spring seat and transmits the desired force through said spring to said blocking member; and

e. a nipple having internal and external threads and having a movement restricting shoulder portion on with said rail member.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. 3,883,107

Otis W. Ashworth and Gordon C. Holden INVENTOR(S) 1 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

C01. 4, line 39, change "section" to sectional C01. 4, line 59, change "0t" to to C01. 6, lines 34 et seq. delete lines 34 0 except for word 'comprising in line 60 Signed and Sealed this twenty-third D ay Of December I 9 75 [SEAL] A ttes t:

RUTH c. MASON c. MARSHALL DANN A IP II'HR ffi Commissioner oj'Parenls and Trademarks

Claims

1. Apparatus for anchoring a load to a loadbed comprising: a. a rail member fixedly attached to a loadbed; b. a T-shaped structure formed of first and second plate-like portions, an edge of said first plate-like portion being attached to a face of said second plate-like portion intermediate of the ends of said second plate-like portion such that said first and second plate-like portions are in a generally orthogonal relationship, an edge of said first platelike portion opposite from the attached edge of said first plate-like portion being attached to the base of said load; c. a hold down member slidably attached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure; d. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored position, and to urge said lip portion of the channeled bottom of said hold down member into non-sliding engagement with the undercut side portions of said rail member; and e. means for preventing movement of said hold down member longitudinal of said rail member.

2. Apparatus for anchoring a load to a loadbed wherein the means for attaching and locking said load to said hold down member and to said rail member comprises: a. a T-shaped structure formed of first and second plate-like portions, an edge of said first pLate-like portion being attached generally orthogonal to a surface of said second plate-like portion intermediate of the ends of said second plate-like portion, and an edge of said first plate-like portion opposite from the attached edge of said first plate-like portion being attached to the base of said load; b. a hold down member slidably attached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure; c. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored position, and to urge said lip portion of said channel bottom of said hold down member into non-sliding engagement with the undercut side portions of said rail member. comprising: a. a rail member fixedly attached to a loadbed; b. a hold down member slidably attached to said rail member; c. means for attaching said hold down member to said load; d. means for locking said hold down member to said load and to said rail member to prevent movement of said load transverse of said rail member; e. a blocking member having regularly spaced projections extending therefrom; f. a bar member, having regularly spaced projection engaging openings, fixedly attached to said loadbed adjacent and parallel to said rail member; g. means for attaching and locking said hold down member to said blocking member and to said bar member once the regularly spaced projections on said blocking member are in meshing relationship with the regularly spaced projection engaging opening on said bar member; and h. means for clamping said blocking member to prevent the blocking member projections meshed in said projection engaging openings in said bar member from becoming disengaged from said projection engaging opening in said bar member.

3. Apparatus for anchoring a load to a loadbed comprising: a. a rail member, having a top portion and having undercut sides, fixedly attached to said loadbed; b. a hold down member, having a channeled bottom with lip portions, slidably engaging said undercut sides and said top portion of said rail member; c. means for attaching said load to said hold down member; d. means for locking said hold down member to said load and to said rail member to prevent motion of said load transverse of said rail member; e. a blocking member having regularly spaced projections extending therefrom; f. a bar member having regularly spaced projection engaging openings, fixedly attached to said loadbed adjacent and parallel to said rail member; g. means for attaching and locking said hold down member to said blocking member and to said bar member once the regularly spaced projections on said blocking member are in meshing relationship with the regularly spaced projection engaging openings on said bar member; h. means for clamping said blocking member to prevent the blocking member projections meshed in said projection engaging openings in said bar member from becoming disengaged from the projection engaging openings in said bar member.

4. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for attaching and locking said load to said hold down member and to said rail member comprises: a. a T-shaped structure formed of first and second plate-like portions, an edge of said first plate-like portion being attached generally orthogonal to a surface of said second plate-like portion intermediate of the ends of said second plate-like portion, and an edge of said first plate-like portion opposite from the attached edge of said first plate-like portion being attached to the base of said load; b. a hold down member slidably aTtached to said rail member having a T-shaped upper channel portion extending in the direction of the longitudinal axis of said rail member, engageable with said T-shaped load attached structure; and c. a shim member insertable between the surface of said second plate-like portion that is attached to an edge of said first plate-like portion and an adjacent surface of said upper channel portion of said hold down member, to urge said load attached T-shaped structure toward said rail member into an anchored position and to urge said lip portion of said channeled bottom of said hold down member into nonsliding engagement with the undercut side portions of said rail member.

5. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for attaching and locking said hold down member to said blocking member and to said loadbed attached bar member comprises: a. a bracket member fixedly attached to an end of said hold down member, having a threaded opening extending therethrough; b. an end plate member fixedly attached to an end of said blocking member, having openings extending therethrough and having the blocking member mounted end plate member locate adjacent said threaded opening in said hold down member mounted bracket member; c. a shim member insertable between a hold down member mounted bracket member and a blocking member mounted end plate member having openings through said shim member that are in the same spatial relation as opening in said bracket member and said end plate member; and d. a bolt insertable through an opening in said end plate member and said shim member having a threaded end portion, said bolt being screwable into the threaded opening in said bracket member to attach and lock said hold down member to said blocking member and to said loadbed attached bar member.

6. Apparatus for anchoring a load to a loadbed as defined in claim 3 wherein the means for clamping said blocking member in said bar member comprises: a. a channeled shoe member slidably engaging said rail member; b. a threaded bolt-like member having one end of said bolt-like member fixedly attached to said channeled shoe member and having the threaded end of said bolt-like member insertable through an opening in said blocking member; and c. means for urging said bolt-like member through said opening in said blocking member and applying a force to said blocking member and said channeled shoe member sufficient to keep said regularly spaced projections extending from said blocking member firmly clamped in said projection engaging openings in said bar member and to urge said channeled shoe member into nonsliding engagement with said rail member.

7. Apparatus for anchoring a load to a loadbed as defined in claim 6 wherein the means for urging said bolt-like member through said opening comprises: a. two outer and one inner of said bolt-like members longitudinally spaced on said channeled shoe member; b. a cylindrical spring assembled concentrically on the said two outer bolt-like members after said two outer bolt-like member having been inserted through longitudinally spaced openings in said blocking member such that one end of said spring engages said blocking member; c. an apertured spring seat assembled on said two outer bolt-like members such that the threaded end of said outer bolt-like member passes through the aperture in said spring seat and said spring seat engages the remaining end of said cylindrical spring; d. an internally threaded nut screwable on said two outer bolt-like members to the point where said threaded nut engages said spring seat and transmits the desired force through said spring to said blocking member; and e. a nipple having internal and external threads and having a movement restricting shoulder portion on one end insertable through an opening in said blocking member and a nut that has been screwed onto the external threads and fixedly attached to said nipple having the inTernal threads of said nipple screwed onto the threaded end of said inner boltlike member sufficient to keep said regularly spaced projections extending from said blocking member firmly clamped in said projection engaging openings in said bar member and to urge said channeled shoe member into nonsliding engagement with said rail member.