US2333984A

US2333984A - Gyro indicating device

Info

Publication number: US2333984A
Application number: US479206A
Authority: US
Inventors: Bert G Carlson
Original assignee: Jack and Heintz Inc
Current assignee: Jack and Heintz Inc
Priority date: 1943-03-15
Filing date: 1943-03-15
Publication date: 1943-11-09
Anticipated expiration: 1960-11-09

Description

Nov. 9, 1943. Q Q CARLSON 2,333,984

GYRO INDICA'IING DEVICE Filed March 15, 1943 INVENToR. Y [5f/P75 CAI/H50# Patented Nov. 9, 1943 GYRO INDICATING DEVICE Bert G. Carlson, Erieside, Ohio, assignor to Jack & Heintz, Inc., Bedford, Ohio, a corporation of Ohio Application March 15, 1943, Serial No. 479,206

3 Claims.

This invention relates in general to automatic pilot and gyro indicating devices and more particularly to improvements in the construction and operating means for the adjustable miniature airplane, or reference index, on the instrument dial.

One of the primary objects of the invention is to provide an improved adjustable miniature airplane, or reference index, and means for operating the same, whereby besides ease and convenience of operation being obtained, there will be provided less obstruction of visibility of the face of the dial of the instrument in its adjusted positions in one direction and also reference indices by which to gauge movements of the artificial horizon bar in its movements in two diiferent planes.

With the foregoing and other objects in View, the invention resides in the combination of parts and in the details of construction hereinafter set forth in the following specification and appended claims, certain embodiments thereof being illustrated in the accompanying drawing, in which:

Figure l is a View in front elevation of the liight instrument dial showing the miniature airplane and the artificial horizon bar horizontal but slightly above the same.

Figure 2 is a view in rear elevation of the same with the artificial horizon bar tilted with respect to the horizontal.

Figure 3 is a View in section taken along line 3-3 of Figure 1.

Referring .more particularly to the drawing,

the device to which the invention is applied may be a gyro horizon indicator in which the front cover plate I receives a glass cover 2, a rim 3 with gradations, and a center disc Il over which the conventional articial horizon bar 5 is movable in vertical and rotary planes and components thereof.

The miniature airplane, or reference index, is shown at 6 extending over the horizontal diameter of disc 4 and having a central reference point 'I and two or more intermediate reference points 8 and 9 arranged on either side of point 'I. This miniature airplane 6 is supported by a yoke having arms l and II. Integral with the front cover plate is a plate I2 having a bearing I3 to receive a shaft I4 carrying on its one end a miniature airplane adjusting knob I5 and near its other end a gear I6 that meshes with a larger gear II which has a shaft I8 carried by plate I2. The yoke has a horizontal slot I9 to receive a pin 23 carried by the larger gear I'I. To the rear side of the front cover plate I is secured at 2| a plate 22 provided with a vertical slot 23 to receive in sliding guiding relationship a flange 24 on the yoke which also has a pair of flanges 25 slidably engaging the exterior of plate 22. Thus as knob I5 is turned counterclookwise, as viewed in Figure 1, gear I6 rotates gear I'I clockwise during which the pin 20, carried by gear I1 rides from left to right and forces the yoke, and consequently the miniature airplane 5, upwardly. A clockwise rotation of knob I5 likewise lowers the yoke and miniature airplane 6.

In any of the adjusted positions of the miniature airplane it serves as a ready indicator of dive and climb of the aircraft by reference thereto and to the movable artificial horizon bar 5. Moreover, by reason of the horizontally spaced reference points 1, 8 and 9 on the miniature airplane the degree of bank may be more readilyn determined or set, such as shown in Figure 2 where the articial horizon bar 5 is not only tilted horizontally with respect to the miniature airplane but also passes through reference point 8 instead of the central point 1. Accompanying these advantages is the one of ready visibility of a substantially greater portion of the dial and disc 4 for reference purposes due to the yoke suspension for the miniature airplane instead of the usual suspension by a centrally `disposed standard.

I claim:

l. In combination in a` gyro horizon indicator for aircraft, a yoke, a movable artificial horizon bar and an adjustable miniature airplane being supported at its ends by the arms of said yoke, a control knob and means actuated thereby for moving said yoke upwardly and downwardly, said means comprising a rotatable gear, a pin carried thereby, means forming a vertical guideway for said yoke, said yoke having a horizontal guideway to receive said pin whereby rotation of said knob is adapted to move said yoke vertically in accordance with the rotation of said knob.

2. In combination in a gyro horizon indicator for aircraft, a movable artiiicial horizon bar, a yoke and an adjustable miniature airplane being supported at its ends by the arms of said yoke, a control knob and means actuated thereby for moving said yoke upwardly and downwardly, said means comprising a rotatable gear, a pin carried thereby, means forming a vertical guideway for said yoke, said yoke having a horizontal guideway to receive said pin whereby rotation of said knob is adapted to move said yoke vertically in accordance with therotation of said knob, said an adjustable `miniature airplane, normally parallel to and adjacent said bar, a yoke having" 10 arms for supporting said miniature airplane at its ends, said miniature airplane beingv provided with an'enlarged central portion and a plurality of enlarged portions equidistantly arranged on either `side of said central portionpto form reference elements to register with said artificial hori- Y zon bar in its movements out of parallelism with the horizontal to indicate tilt of said aircraft.

BERT G. CARLSON.