US1731047A

US1731047A - John holtzman

Info

Publication number: US1731047A
Authority: US
Publication date: 1929-10-08
Anticipated expiration: 1946-10-08

Description

et. 8, 1929. HQLTZMAN 1,731,047

AERIAL-TOY DRIVE Original Filed Dec. 18, 1924 INVENTOR Patented Oct. 8, 1929 UNITED STATES JOHN HOLTZMAN, OF NEW YORK, N. Y.

AERIAL TOY DRIVE Original application filed December 18, 1924, Serial No. 756,718. Divided and this application filed January My invention relates to toys and especially to the mechanism embodied in a toy aircraft for operating the latter and imparting to it the appearance of an aircraft in flight.

The present application is a division of my copending application for Letters Patent, filed Dec. 18, 1924, Serial No. 756,718.

The object of this invention is to provide a toy of this character, which is simple and sturdy in construction and which may be manipulated by a small child to send the craft on its outward and return flights without the child changing his or her position.

I accomplish these objects by means of the construction described in the following specification, set forth in appended claims and illustratively exemplified in the accompanying drawings, in which Fig. 1 is a side elevational view of a toy air craft embodying my improved propelling mechanism; Fig. 2 is a bottom plan view of the same.

Referring to the drawings, 10 denotes a longitudinally disposed bar which forms the body of the craft. The rear or tail of the bar 10 is provided with an inclined support 11 having its opposite ends clamped about the said. bar. An elevating plane 12 is arranged on the support 11, the plane 12 being preferably in the shape of an elongated ellipse. The front of the bar 10 carries a fixed wing 13 on its upper side, the supporting piece therefor being similar to that used for the elevating plane 12. A hollow propeller shaft 14 is suspended and rotatably mounted in brackets 15 carried by the bar 10 forward of the fixed wing 13. The craft is provided with a propeller 16 having a hub 17 fixed on the extreme forward end of the propeller sha ft 1 1-.

In addition to the bar 10, the frame comprises a U-shaped metal portion 18, the closed end of which abuts the forward bracket 15 at the end of the bar 10, while the parallel sides 19 are spaced from and project well below the sides of the bar. Rotatably mounted between and in the sides 19 are three

spaced spindles

20, 21 and 22, the spindle 20 being nearest the tail is provided with a spur gear :23, operating adjacent one of the sides 19. Between the gear 23 and the opposite side 19 the spindle 20 carries a coiled spring 24, one

Serial No. 249,623.

end of the latter being fired in the gear 23 and the other in the side 19, as illustrated in Fig. 2.

The intermediate spindle 21 carries a spur gear in mesh with the spur gear 23 and between the gear 25 and the opposite side 19 the spindle 21 carries a winding drum 26 which is stepped, the larger portion 27 being arranged adjacent the 25 and the smaller portion 23 projecting from 27 to the opposite side wall 19. The

steps

27 and 28 of the drum receive the coils of two cords and 29, respectively. The ends of the

cords

29 and 30 are attached to their respective steps of the drum adjacent their outer ends and wind towards the center when the drum rotates in one or the other direction. The other end of the cord projects towards the tail of the machine beneath the bar 10 and is guided in its movements in

eyes

31 and 32 mounted between the tail ends of the sides 19 and extreme tail tip of the bar 10, respectively. The other cord 30 from the step 27 passes directly to and through the bore of the hollow shaft 14, as illustratively exemplified in Fig. 1.

The speed of the air craft over the cords 2S and 30 .in one direction is governed by the propelier 16, which receives its rotary motion from the spring 24 on its return travei through a spur gear 33 mounted and turning with the spindle 22, and a worm gear 34 disposed intermediate the latter and in mesh with the worm threads 35 cut in the exterior of the propeller shaft 14:.

To manipulate the toy, the cord 29 at its free end. is securely attached to some stationary object, while the cord 30, which in normal position is substantially all wound upon the portion 27, is drawn outwardly. As a resuit the cord 30 unwinds from the drum and the cord 29 winds upon the portion 28, as the drum revolves in a clockwise direction. Corresponding; rotary motion is imparted to the spur gear 23 by rotary movement of the gear 21 which in turn tensions the spring 2%. The propeller during its outward travel is rotating in the reverse direction to that of driving through the worm and worm wheel con nection with the shaft i l. The air craft thus far has traveled over its cords and is positioned adjacent the fixed end of cord 29. The

tension on the cord 30 is then relieved, whereupon spring 2% through the train of

gears

23, 25 and 33 exerts its tension to rotate the

spindles

20, 21 and 22 in the opposite direc tions from those taken during their initial movements. The propeller 16 now operating exerts its pull in a direction towards the operator and as a consequence the craft returns to its initial position, the cord 29 being unwound from the drum 2G and cord be inn again rewound upon the latter. It will be clear then that by the simple operation of alternately exerting and relazsing tension on the cord 29 the device will move towards and away from the operator with all the appearances of an air craft in flight and without the necessity of a change in the position of the operator.

1 claim:

1. In a mechanical toy of the character described, the combination of a frame, a winding drum mounted in the frame, a hollow propeller shaft mounted in the fi me and 'operatively associated with said drun'i, and

a cord one end thereof being wound about said drum and the other projecting through the bore of the shaft to operate the toy.

2. A mechanical toy of the character described, the combination of a frame, a wind ing drum mounted in the frame, a hollow propeller shaft mounted in the frame and operatively connected with the said drum, and a pair of cords with one of their ends wound about said drum, one cord projecting from the drum towards one end of the toy and the other cord pro'ecting from the drum through the bore of the shaft to operate the toy.

3. A mechanical toy comprising a bar, a frame attached thereto, a worm spindle re-- volvable in said frame, a propeller fan fixed to said spindle, said spindle being hollow, a gear mounted in the frame to actuatethe spindle, a drum fastened to the gear, a cord fastened with one end to the drum and the other passing through he spindle to operate the toy.

4. A mechanical toy comprising a frame, a threaded spindle revolvable in said frame, a propeller fan fastened to said spindle, said spindle being hollow, a gear mounted in the frame to actuate the spindle, a drum in said frame adjacent to said gear, and a pair of cords with one of their ends fastened to the drum, their windings so disposed that when one cord is winding the other is unwinding on the drum and one of the free ends of said cords passing through the hollow spindle to operate the toy.

5. ln a mechanical movement having the combination of a frame, a hollow spindle revolvably mounted in said frame, a gear in the frame to drive the spindle, a cable passing through the hollow spindle to operate the same, and a fan propeller fastened to said spindle.

6. A mechanical toy having the combination of a frame, a hollow spindle revolvably mounted in said frame, a gear to drive the l spindle, a cable passing through the hollow spindle and driving the gear, a fan propeller fastened to said spindle, and a second cable to drive the gear and spindle in opposite directions to operate the toy.

7. A propelling mechanism for toy air craft, comprising a hollow propeller spindle, a drum operatirely associated with said spindle, and cords winding in opposite directions upon said drum, one cord being projected through the spindle to rotate the drum and to operate the toy in one direction.

8. In a. mechanical toy air craft comprising a propeller, a drum operatively associated with said propeller for actuating the same, and cords winding in opposite directions upon said drum to operate the toy.

9. in a mechanial toy aircraft comprising a fan propeller, a drum, a pair of cords wound in opposite directions upon said drum and means interposed between said drum and propeller for actuating the same upon the pulling; one of rid cords.

10. In a mechanical toy comprising the combination of a. frame, a fan propeller revolvably mounted in said frame, a drum, a pair of cords wound in opposite directions upon said clan and means interposed be tween the drum and the propeller to operate the toy upon pulling one of said cords.

In testimony whereof I aiiix my signature.

JOHN IEOL iMiIilihl