# US 4,395,003 A · Device for suspending under aircraft miscellaneous loads with variable distance between centers

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- Number: US 4,395,003 A
- Document ID: US4395003A
- Status: Granted
- Kind: A
- Application number: 06/272,845
- Filed: 1981-06-12
- Granted: 1983-07-26
- Earliest claimed: 1980-06-13
- Assignees: R. Alkan & Cie
- Inventors: Pierre F. Coutin
- Web page: https://patentgrep.com/patent/US4395003A

## CPC

- B64D 7/08: Arrangement of rocket launchers
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT

## Abstract

Device for carrying under aircraft multiple loads disposed at variable distances between centers, the modification of the distance between centers being obtained by rotating load supports about longitudinal axes by means of bearings provided in the frame structure of the carrier device. Each load support may be rigid with circular sets of teeth engaged by matching teeth formed on arms fulcrumed by means of eccentric pins on the frame structure and controlled for a same load support by cam device rigid with a common shaft.

## Claims

### Claim 1

A device for carrying under aircraft multiple loads disposed at variable distances between centers, which comprises:
(a) a central frame structure equipped at its upper face with suspension members adapted to co-act with hook means of the aircraft,
(b) a pair of lateral hollow nacelles carried on each side of said central frame structure,
(c) load supports disposed within each lateral nacelle and presenting load suspension means registering with an aperture of the corresponding nacelle, said load supports being mounted in bearings carried by each nacelle to rotate about the longitudinal axis of said nacelle, and
(d) control means associated to said load supports to cause the load supports disposed within each nacelle to rotate about the longitudinal axis of said nacelle, thus ensuring a variation in the distances between centers of the loads suspended to the load supports of one nacelle and to the load supports of the other nacelle.

### Claim 2 (depends on 1)

Device according to claim 1, wherein the rotary load supports comprise locking means consisting of gear teeth associated with play take-up means.

### Claim 3 (depends on 2)

Device according to claim 2, wherein a set of gear teeth is rigid with each load support and consists of a toothed segment while another set of gear teeth is matching therewith and consists of teeth formed on a pivoted arm.

### Claim 4 (depends on 3)

Device according to claim 3 wherein each load support is mounted in two bearings and presents two sets of gear teeth, two pivoted arms each presenting a set of gear teeth being provided to match with the sets of gear teeth of the load support and said pivoted arms being responsive simultaneously to a pair of cams rigid with a common shaft.

### Claim 5 (depends on 1)

Device according to claim 1, wherein the axis of rotation of each load support is coincident with the axis of a case rigid with said load support.

### Claim 6 (depends on 5)

Device according to claim 5, wherein each rotary case rigid with a load support is of cylindrical configuration.

### Claim 7 (depends on 1)

Device according to claim 1, wherein said load supports are secured to pivoting members of which the lateral relative spacing is determined by the use of an intermediate load support.

### Claim 8 (depends on 7)

Device according to claim 7, wherein the intermediate load support comprises centering ball-and-socket joints and trapezoidal-sectioned keys to lock said load supports in position and hold them therein without play.

### Claim 9 (depends on 1)

Device according to claim 1, wherein said load supports are secured to pivoting members of which the lateral relative spacing is determined by the use of a detachable distance-piece.

### Claim 10 (depends on 9)

Device according to claim 9, wherein the detachable distance-piece comprises centrering ball-and-socket joints and trapezoidal-sectioned keys to lock said load supports in position and hold them therein without play.