using vertical members to restrain the towed vehicle from relative movement in the direction of motion of the vehicles shall be substantially constructed and adequate for the purpose. Such cradle-mounts shall be equipped with at least one bolt or equivalent means to provide against relative vertical movement between the "upper-half" and the towed vehicle. Bolts, if used, shall be at least 1⁄2 inch in diameter. Devices using equivalent means shall have at least equivalent strength. The means used to provide against relative vertical motion between the "upper-half" and the towed vehicle shall be such as not to permit a relative motion of over 11⁄2 inch. The distance between the most widely separated points of support between the "upper-half" and the towed vehicle shall be at least 9 inches.

(5) Provision against lateral movement of towed vehicle. Towed vehicles having a straight axle or an axle having a drop of less than three inches shall be securely fastened by means of chains or cables to the "upperhalf" so as to insure against relative lateral motion between the towed vehicle and the "upper-half". The chains or cables shall be at least inch in diameter and secured by bolts of at least equal diameter.

Towed vehicles with an axle with a "drop" of three inches or more need not be restrained by chains or cables provided that the "upper-half" is so designed as to provide against such relative motion.

Chains or cables shall not be required if the "upper-half" is so designed as positively to provide against lateral movement of the axle.

(c) "Lower-half" specifications (1) Construction of "U-bolts" or other means of attachment. "U-bolts" used to attach the "lower-half" to the towing vehicle shall be made of steel rod, free of defects, so shaped as to avoid at any point a radius of less than one inch; Provided, however, That a lesser radius may be utilized if the "U-bolt" is so fabricated as not to cause more than 5% reduction in cross-sectional area at points of curvature, in which latter event the minimum radius shall be 1/16 inch. "U-bolts" shall have a total cross-sectional area not less than as required by the following table:

lation to provide against relative movement between the "lower-half" and the towing vehicle especially during periods of rapid acceleration and deceleration.

(3) Provision against swaying. Adequate provision shall be made by design and installation to provide against swaying or lateral movement of the towed vehicle relative to the towing vehicle. To insure against swaying, "lower-halves" designed with crossmembers attached to but separable from vertical members shall have such cross-members fastened to the vertical members by at least two bolts on each side. Such bolts shall be of at least equivalent cross-sectional area as those required for "U-bolts" for the corresponding saddle-mount as given in the table in subdivision (1) of this subdivision. The minimum distance between the most widely separated points of support of the crossmembers by the vertical member shall be three inches as measured in a direction parallel to the longitudinal axis of the towing vehicle.

The "lower-half" shall have a bearing surface on the frame of the towing vehicle of such dimensions that the pressure exerted by the "lower-half" upon the frame of the towing vehicle shall not exceed 200 pounds per square inch under any conditions of static loading. Hardwood blocks or blocks of other suitable material, such as hard rubber, aluminum or brake lining, if used between the "lower-half" and the frame of the towing vehicle shall be at least 2 inch thick, 3 inches wide, and a combined length of 6 inches.

Under no condition shall the highest point of support of the towed vehicle by the "upperhalf" be more than twenty-four inches, measured vertically, above the top of the frame of the towing vehicle, measured at the point where the "lower-half" rests on the towing vehicle.

(4) Limitations on use of wood blocks. Hardwood blocks, of good quality, may be used to build up the height of the front end of the towed vehicle, Provided, That the total height of such wood blocks shall not exceed eight inches and not over two separate pieces are placed upon each other to obtain such height; however, hardwood blocks, not over four in number, to a total height not to exceed 14 inches, may be used if the total cross-sectional area of the "U-bolts" used to attach the "lower-half" to the towing vehicle is at least 50% greater than that required by the table contained in subdivision (1) of this subdivision; or, if other devices are used in lieu of "U-bolts" they shall provide for as great a resistance to bending as is provided by the larger "U-bolts" above prescribed.

Hardwood blocks must be at least four inches in width and the surfaces between blocks or block and "lower-half" or block and "upper-half" shall be plane and so in

stalled and maintained as to minimize any tendency of the towed vehicle to sway or rock.

(5) Specifications for cross-member. The cross-member, which is that part of the "lower-half" used to distribute the weight of the towed vehicle equally to each member of the frame of the towing vehicle, if used, shall be structurally adequate and properly installed and maintained adequately to perform this function.

(i) Limitation on use of wood. No materials, other than suitable metals, shall be used as the cross-member, and wood may not be used structurally in any manner that will result in its being subject to tensile stresses. Wood may be used in cross-members if supported throughout its length by suitable metal cross-members.

(ii) Strength of "lower-half". The "lowerhalf" shall be capable of supporting the loads given in the following table. For purpose of test, the "saddle-mount" shall be mounted as normally operated and the load applied through the “upper-half”.

Minimum load saddle-mount

Weight in pounds of towed vehicle: Up to 5,000 pounds‒‒‒‒‒‒‒‒‒‒‒‒‒‒‒ 5,000 5,000 pounds and over-‒‒‒‒‒‒ 10,000

(d) Bearing surface between "upper and lower-half." The "upper and lower-halves" shall be so constructed and connected that the bearing surface between the two halves shall not be less than sixteen square inches under any conditions of angularity between the towing and towed vehicles: Provided, however, That "saddle-mounts" using a ball and socket joint shall have a ball of such dimension that the static bearing load shall not exceed 800 pounds per square inch, based on the projected cross-sectional area of the ball: And further provided, That saddlemounts having the "upper-half" supported by ball, taper, or roller-bearings shall not have such bearings loaded beyond the limits prescribed for such bearings by the manufacturer of the bearing. The "upper-half" shall rest evenly and smoothly upon the "lower-half" and the contact surfaces shall be lubricated and maintained so that there shall be a minimum of frictional resistance between the parts.

"

(e) Universal action of saddle-mount. All new "saddle-mounts" acquired and used after two years from the date of the order adopting this section shall provide for angularity between the towing and towed vehicles due to vertical curvature of the highway. Such means shall not depend upon either the looseness or deformation of the parts of either the "saddle-mount" or the vehicles to - provide for such angularity.

(f) Specifications for "king-pin” — (1) Size of "king pin". "King-pins" shall be constructed of steel suitable for the purpose,

If a ball and socket joint is used in place of a "king-pin" the diameter of the neck of the ball shall be at least equal to the diameter of the corresponding solid "king-pin" given in the above table. If hollow "king-pins" are used, the cross-sectional area shall be at least equal to the cross-sectional area of the corresponding solid "king-pin".

(2) "King-pin" fit. If a "king-pin" bushing is not used, the "king-pin" shall fit snugly into the "upper and lower halves" but shall not bind. Those portions of the "upper or lower-halves" in moving contact with the "king-pin" shall be smoothly machined with no rough or sharp edges. The bearing surface thus provided shall not be less in depth than the radius of the "king-pin".

The

(3) "King-pin" bushing required. "king-pin" of all new "saddle-mounts" acquired and used after two years from the date of the order adopting this section shall be snugly enclosed in a bushing at least along such length of the "king-pin" as may be in moving contact with either the "upper or lower-halves". The bearing surface thus provided shall not be less in depth than the radius of the "king-pin".

(4) "King-pin" to restrain vertical motion. The "king-pin" shall be so designed and installed as to restrain the "upper-half" from moving in a vertical direction relative to the "lower-half".

(g) Tracking. The "saddle-mount" shall be so designed, constructed, maintained, and installed that the towed vehicle or vehicles will follow substantially in the path of the towing vehicle without swerving. Towed vehicles shall not deviate more than three inches to either side of the path of the towing vehicle when moving in a straight line. (h) Location of the "saddle-mount”—(1) Bending of frame of towing vehicle. Where necessary, provision shall be made to prevent the bending of the frame of the towing vehicle by insertion of suitable blocks inside the frame channel to prevent kinking.

The "saddle-mount" shall not be so located as to cause deformation of the frame by reason of cantilever action.

(2) Prohibition of extension of frame. No "saddle-mount" shall be located at a point to the rear of the frame of the towing vehicle.

(i) General provisions-(1) Restraining front wheels. Towed vehicles shall, by adequate means, have the motion of the front wheels restrained if under any condition of

turning of such wheels they will project beyond the widest portion of either the towed or towing vehicles.

(2) Front end of towed vehicle on towing vehicle. Unless the steering mechanism is locked in a straight-forward position, all vehicles being towed by "saddle-mount" shall be towed with the front end mounted on the towing vehicle.

(3) Nuts to be secured. All nuts used on bolts; "U-bolts", "king-pins", or in any other part of the "saddle-mount" shall be secured against accidental disconnection by means of cotter-keys, lock-washers, double nuts, safety nuts, or equivalent means. Parts shall be so designed and installed that nuts shall be fully engaged.

(4) Inspection of all parts. The "saddlemount" shall be so designed that it may be disassembled and each separate part inspected for worn, bent, cracked, broken, or missing parts.

(5) Marking new "saddle-mounts." Every new "saddle-mount" acquired and used in drive-away operations by a motor carrier after April 15, 1947, shall have the "upperhalf" and the "lower-half" separately marked with the following certification of the manufacturer thereof (or words of equivalent meaning): "This saddle-mount complies with the requirements of the Interstate Commerce Commission for vehicles up to 5,000 pounds" (or over 5,000 pounds)- "Manufactured (Month) (Year) by (Name of Manufacturer)."

(d) Number of drive-away vehicles in combination (1) Number of drive-away vehicles in combination. No more than one vehicle shall be towed in any combination of motor vehicles in any drive-away operation.

(2) Carrying vehicles on towing vehicle. When adequately and securely attached by means equivalent in security to that provided in paragraph (c) (2) (ii) (b) (2) of this section, a motor vehicle or motor vehicles may be full-mounted on the structure of a towing vehicle engaged in any driveaway operation.

(3) Carrying vehicles on towed vehicles prohibited. No motor vehicle shall be transported on any towed motor vehicle, in any drive-away operation.

NOTE: Ex Parte Nos. MC-3, MC-4, Feb. 27, 1947, was promulgated to become effective Apr. 1, 1947, 12 F.R. 1731. Subsequently, the effective date of this order was extended to Apr. 11, 1947, by Order, Mar. 26, 1947, 12 F.R. 2436; to Apr. 18, 1947, by Order, Apr. 8, 1947, 12 F.R. 2436; to Aug. 18, 1947, by Order, June 12, 1947, 12 F.R. 3975; to Oct. 15, 1947, by Order, Aug. 7, 1947, 12 F.R. 5507. The effective date of 194.5 (c) (2) (i) (a) only was extended to Dec. 1, 1947, by Order, Aug. 1, 1947, 12 F.R. 5507. This order was rescinded by Order, Oct. 6, 1947, 12 F.R. 6813.

PART 195-ACCIDENT REPORTS CROSS REFERENCE: See note to § 191.5 (c).

§ 197.01 Application of regulations. NOTE: 197.01 was continued in effect until Dec. 31, 1948, unless otherwise ordered by the Commission, by Order, Interstate Commerce Commission, Dec. 29, 1947, 12 FR. 8868.

§ 197.2 Equipment rules.

NOTE: 197.2 was continued in effect until Dec. 31, 1948, unless otherwise ordered by the Commission, by Order, Interstate Commerce Commission, Dec. 29, 1947, 12 F.R. 8868.

CROSS REFERENCE: See note to § 191.5 (c). PART 204-CHARGES ON SMALL SHIPMENTS [ADDED]

Each

§ 204.1 Traffic inquiry data. class I common carrier by motor vehicle engaged in intercity service as a carrier of general commodities and subject to Part II of the Interstate Commerce Act, which had an annual gross operating revenue for the year ended December 31, 1946 of $400,000, or more, and every receiver, trustee, executor, administrator, or assignee of any such motor common carrier, is hereby required to compile and furnish to this Commission, the data called for in Traffic Table No. 1 which is attached hereto and made a part of this section.1 The Traffic Table shall be filed in duplicate with the Bureau of Transport Economics and Statistics, Interstate Commerce Commission, Washington 25, D. C., on or before the 15th day of October 1947. (49 Stat. 563, 54 Stat. 926; 49 U.S.C. 320) [Dockets MC-C-542 and MC-C-543, July 10, 1947, 12 F.R. 4887]

PART 205-REPORTS OF MOTOR
CARRIERS

Sec.

205.12 Quarterly report of property revenues, expenses and statistics. [Revised]

AUTHORITY: §§ 205.1 to 205.12, appearing in this Supplement, issued under 49 Stat. 563, sec. 24, 54 Stat. 926; 49 U.S.C. 320.

§ 205.1 Form prescribed for annual reports. Each Class I Common and Contract Motor Carrier of Property and each Class I Common and Contract Motor Carrier of Passengers shall file under oath an annual report for the year ended December 31, 1946, and for each succeeding year until further order, in accordance with Motor Carrier Annual Report Form A (Class I Motor Carriers of Property and Passengers) which is hereby approved and made a part of this section. The annual report shall be filed, in duplicate, in the Bureau of Motor Carriers, Interstate Commerce Commission, Washington, D. C., on or before March 31 of the year following the one to which it relates. [Order, Jan. 2, 1947, 12 F.R. 182]

§ 205.2 Supplements to Motor Carrier Annual Report Form A-(a) 1946. (1)

(2) Each Class I common carrier by motor vehicle engaged predominantly in intercity service as a carrier of general commodities which had gross operating revenues for the year 1945 of $400,000 or more shall file a supplement to its annual report for the year 1946 in accordance with Supplement to Annual Report Form A for the year 1946 which is hereby approved and made a part of this order.1 Such Supplement shall contain information for the nine months ended December 31, 1946, and shall be filled, in duplicate, in the Bureau of Motor Carriers, Interstate Commerce Commission, Washington, D. C., on or before March 31, 1947.

(b) 1947. (1) Each Class I common carrier by motor vehicle engaged predominantly in intercity service as a carrier of general commodities which had gross operating revenue for the year 1945 of $400,000 or more shall keep its accounts and compile statistics which will permit it to report to the Interstate Commerce Commission for the 12 months ending December 31, 1947, the information contained in the Supplement to Motor Carrier Annual Report Form A for 1947, which is attached hereto and made a part of this paragraph.1

CODIFICATION: § 205.2 was amended by Order, Commission, Jan. 6, 1947, 12 F.R. 194. This amendment appeared as a revision of § 205.2. Subsequently paragraph (a) was redesignated as paragraph (a) (1), the text appearing at 12 F.R. 194 was redesignated as paragraph (a) (2), and paragraph (b) was redesignated as paragraph (b) (1) and amended to read as set forth above by Order, Commission, Jan. 29, 1947, 12 F.R. 866.

$ 205.12 Quarterly report of property revenues, expenses and statistics. Each Class I common and contract motor carrier of property subject to the provisions of section 220 of the Interstate Commerce Act, shall file, under oath, quarterly reports commencing with the period January 1, 1947, to March 31, 1947 (both dates inclusive), in accordance with the Quarterly Report of Revenues, Expenses, and Statistics for Class I Motor Carriers of Property form 1 which is hereby approved and made a part of this order. Quarterly reports shall be forwarded, in triplicate, to the office of the Bureau of Motor Carriers of the Interstate Commerce Commission for the district in which the carrier is domiciled within thirty days after the close of the period to which they relate. [Order, Jan. 13, 1947, 12 F.R. 22011

Filed as part of the original document.

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