US2075267A

US2075267A - Toy airplane device

Info

Publication number: US2075267A
Application number: US91369A
Authority: US
Inventors: Frederic A Christiansen
Original assignee: BERTRAM BARR
Current assignee: BERTRAM BARR
Priority date: 1936-07-18
Filing date: 1936-07-18
Publication date: 1937-03-30
Anticipated expiration: 1954-03-30

Description

March 30, 1937. E. A. cHRlsTlANsl-:N 075,257

TOY AIRPLANE DEVICE Filed July 18, 1936 5 Srxeevts-Sheet l vll INVENTOR ATTORNEY March 30, 1937. A. cHRlsTiANsEN 2,075,257

TOY AIRPLANE DEVICE Filed July 18, 193e s sheets-'sheet 2 lNvrsN- roga frederic A. C/)nslzam'efz BY l TORNEY F. A. CHRISTIANSEN TOY AnIRPLANE DEVI CE Filed July 18, 193e s Sheets-sheet s March 30, 1937.

vPatented Mar. 30, 1937 'roy AIRPLANE nnvroi:

Frederic A. Christiansen, New York, N. Y.,

assignor to Bertram Barr, New York,

Application July 18, 1936, Serial No. 91,369 9 claims. (C1. 27a-31) This invention relates to new and useful improvements in a toy airplane device.

The invention has for an object the construc- .tion of a toy airplane device which is characterized by 4a tower anda plurality of arms associated with the tower in a particular manner, and sup` porting airplanesso that the airplanes may loop-the-loop as well as circle the tower.

Specifically, the invention contemplates partlcular mechanism for accomplishing various motions of the airplane.

It is an object of this invention to arrange a vertical hollow shaft rotatively supported in the tower and xedly supporting -a drum, to arrange an internal shaft rotative through the hollow shaft, to support the airplanes indirectly upon the internalshaft, and to provide an arrangement for rotating the drum and for holding the internal or hollow shaft to obtain the motions de- 20 sired, and also to bring the device to a stop if so` desired. Another object of the invention is the construe# tion of a device as mentioned which is simple and durable and which may be manufactured and 25 sold ata reasonable cost.` For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended 30 claims in which the various novel features of. the

invention are more particularly set'forth.

In the accompanying drawings forming a material part of this disclosurez" Fig. 1 is a'plan view of a device constructed ac- 35 cording to this invention.A

. Fig. 2 is a side elevational view of Fig. 1.

Fig. 3 is a fragmentary horizontal sectional view taken on the line 3+3 of Fig. 2.

Flg. 4 is a fragmentary vertical transverse sec- 40 tional view of Fig. 2.

Fig. 5 is` a. horizontalsectional view taken on theline 5-.5 of Fig. 4.

Fig. 6 isa sectional view taken on the line 6--6 'of Fig. 4. Fig. '7 is a fragmentary sectional view taken on the line 1-1 of Fig. 1.

` Fig. 8 is a plan view similar to Fig. 1 but illus# trating a modified construction.

Fig. 9 is a side elevational view of Fig. 8.

50 Fig. 10 is a transverse vertical sectional view showing another modified form of the invention.

Fig. 11 is a sectional view of another modified form of the invention. A

Fig. 12is a fragmentary horizontal sectional 55 view taken on the une lz-lz of Fig. 11.

The toy airplane device, according to this invention, comprises a hollow tower III in which a vertical hollow. shaft II is rotatively supported. This vertical hollow shaft I I consists of a bottom section IIb and a top section- IIa which extend from. the top of the tower I0. These sections II- and I IlI are iixedly connected together by welding. A drum I2 is coaxially xed on the upper end of the top section IIa. An internal shaft I3 is rotatively supported in the hollow shaft II and extends from the top end thereof. A support I4 is rotatively mounted on the extended portion Aof the internal shaft I3 and is connected with a Ygear I5 which meshes with gear teeth I6 formed t on one edge of the drum I2.

with aipinion 20 which meshes with gear teeth 2I formed on the other edge of the drum I2.

A radial arm 22 projects from the support I4 and is adapted to support an airplane 23. This radial arm has a longitudinal inner end portion 221@l which continues into a transverse intermediate portion 22b which in turn continues into a longitudinal outer end portion 22. 'Ihe airplane 23 is attached upon the outer end portion 22. The

connection between the airplane and the radial arm is such that the airplane may ba'nk one way or the other, and may also tilt upwards or downwards. This is accomplished by the arm portion 22 swivelly engaging into a lug 24 of a bracket v25 which is provided with a trunnion 26, the elements of -which are at right angles to the arm portion 22C. The body of the airplane is formed with a hollow 23 in which the bracket 2571s disposed. It should be noted that the airplane 23 may turn about the rod rtion 22C as a pivot aswell as around the tr 'on 26 as a pivot which is at right angles to the turning permitted by the arm portion 22C.

A brake is associated/with the internal shaft I3 for holding this shaft when\ desired. 'I'his brake comprises a rod 21 extending radiallyfrom the tower and provided with a handle 28 'at vits outer end by which it .may be moved. 'This rod is slidablysupported and at Aits inner end is provided witha brake shoe 29 adapted to engage against a pulley 30 which is fixed upon the shaft I3. Thus, the handle 28 may be moved to engage the brake shoe 29 against the pulley to hold the internal shaft.

The hollow tower I includes a hollow pedestal portion I0 to which a hollow tubular portion IIlb is connected. A substantially spherical portion |8 is mounted upon the upper portion lob and encases the motor I8, the drum I2 and the other parts in this vicinity. A bracket 33 projects from the upper end of the internal'shaft vI3 and supports a ball 34 upon-which a ilag o'r pennant 35 is mounted. A shell shaped cover 36 is supported 10 on the ball 35 and coopera-tes with the spherical portion I0 of the tower to encase the operative mechanism of the device.

The drum I2 is formed with a transverse partition I 28l which has a hub portion engaging the l5 upper end of the hollow shaft II. Several screws I2b serve to iixedly attach the hub portion of the drum with the hollow shaft. Several thrust bearings 38 are interposed between the internal shaft.

I3 and the hollow shaft I I for rotatively connecting these shafts' together. The support member I4 is provided with an armI 39 extending in the opposite direction to the arm 22. A counterweight 40 is mounted upon the end of the arm 39 and is for the purpose of counterweighte ing the airplane 23. 4A brake is provided for stopping rotations of the hollow shaft II and comprises a brake drum 4I fixed upon the bottom end of the hollow shaft II and cooperative with a brake shoe 42 mounted upon the rod 21 but diametrically opposite to the brake shoe 29. Thus, the rod 21 may be moved in one direction for applying one brake, or in the other direction for applying the other brake.

'I'he operation of the device is as follows:

Rotations from the motor I8 will be transmitted to rotate the drum I2 and thus the hollow shaft. II. The friction element I1 will cause the internal shaft I3 to rotate along with the hollow shaft II and consequently the support I4 will 40 turn around the tower as a. center. Thus, the airplane 23 is carried around the tower. The brake 29 may be applied partially or completely. If partially applied the internal shaft I3 will turn at a different rate than the hollow shaft I I,

and a portion of therotations of the drum I2 will be transmitted to turn the gear I5 and rotate the support I4. The airplane 23 will then loopthe-loop in addition to its motion around the tower. If the brake is completely applied the airplane will merely loop-the-loop. The dot and dash lines in Flag. 2 illustrate another position of the airplane during the looping action. If the brake 42 is applied the entire device is brought to astop. Of course, the motor I8 must be cut.

In Figs. 8 and 9 a modified form of the'invention has been disclosed which distinguishes from the prior form merely in the construction of the brake. In this form of the invention a frame 58 is mounted on the ground and connected with 60 the side of the pedestal portion IIJa of -the tower. 'Ihe rod 21 is slidable in this frame. A lever 28a is pivotally mounted at its bottom end 28a upon the frame 50 and the rod 21 has a bent end 21n connected intermediate of the lever 28a. Thus,

the levermay bepivoted in one direction or the other to apply the brakes.

InFig. 10 another form of the invention has been disclosed which distinguishes from the prior form in several respects. The auxiliary arm 39' supports a counterweight 40' for the airplane. This counterweight is threadedly associated with the rod 39.so that it maybe adjusted to various positions to compensate for loads carried by the airplane. Furthermore, in this device a rheostat 5I is provided for the purpose of controlling the speed of the motor I8. 'Ihe wiring is not illustrated on the vdrawings since it forms no part of the invention. A-further variation resides in the fact that merely the internal shaft I3 is provided with the brake 29, 3Il. In other respects this form of the invention is identical tothe previous form and similar parts may be recognized by the same reference numerals.

In the form of the invention illustrated in Figs. 11 and 12 the toy airplane device comprises a hollow tubular tower 60 supported on a `hollow pedestal 6I and at the top end supporting a hollow spherical member 62. A hollow shaft 63 is rotative through the tower 60. An internal shaft 64 is rotative through the hollow shaft 83. A

lsupport member 65 is fixed on the extended end of the internal shaft. A loop-the-lop airplane mechanism 66 is rotatively mounted on the support member 65. A drive is provided for the loop-the-loop airplane mechanism and essentially comprises a driver wheel 61 fixed on the hollow tubular shaft 63 and driving a wheel 68 connected with an arm 69 which supports the airplane 66. A flanged wheel 18 is mounted upon the bottom end of the hollow shaft 64. A brake wheel 1I is mounted on the lower end of the internal shaft 64.

A motor 12 is mcvably supported and has a drive pinion 13 engageable against the flanges of the said flanged wheel 10. A mechanism is provided for manually moving said motor which includes a rod 14 associated with resilient ele- 4

ments

15 and 84 which in turn are associated with the motor 12. A brake 16 is associated with the

resilient elements

15 and 84 and is engageable i against said brake wheel 1I.

The support member 65 is formed with a horizontal bearing portionthrough which a portion 69 of the rod 69 passes. The rod 69 continues from one end`of the portion 69. From the other end there is an extension 69E. A weight 10 is adjustably mounted upon the extension 69 and is for the purpose of counterbalancing the arm 69 and the airplane 66. A trailer rod 1I is attached intermediate of the ends of the rod 69. A bearing 18 is mounted upon the inner Wall at the top of the spherical member 62 and serves to assist in rotatively supporting the support member 65.

The flanged wheel A10 has flanges 10 and 10b. The pinion 13 engages between these flanges. The pinion 13 is driven bya gear system 19 connected with the motor 12.

tached upon the side wall of the motor 12. The

motor is pivotally supported by a pintle 8| on a -bracket 82 mounted upon the pedestal 6I. l A rod 83 is slidable through the bracket 80. Coaxial springs 84 and 15 are mounted upon the rod 83. A'universal joint 85 connects the rod 83 with the rod 14. A handle 88 is arranged on the end of the rod 14 by which it may be moved.

The operation of the device is as follows:-

The handle 88 vmay be moved in one direction or the other to cause the device to operate in various manners. For example, when the handle 88 is moved towards the right the motor 12 will pivot so that the drive pinion 13 engages the flange 18a. This will cause the hollow shaft 63 to rotate in one direction. The internal shaft 64 frictionally engages the hollow shaft 63 and rotates -with it. Consequently, the support 65 rotates and the airplane l6I travels in a circle about the tower. The hollow spherical top 62 has a rotative top section 62 which rotates along with the support member 65.

A bracket is at- -IIl When the handle 88 is pulled further to the right the rod 83 will be moved against the restraining action of the

springs

15 and 84 and soon one of the brakes 16 will engage the wheel 1I. Then the internal shaft 64 is reduced in speed or completely fixedly held. Since the support member 65 is connected with the internal shaft 64 it will be reduced in speed or held, consequently the drive disc 61 which is moving along with the hollow shaft 63 will now rotate the disc 68 and cause the arm 69 to rotate and loop-the-loop the airplane 66'. When the handle is moved towards the left the motor 62 will pivot so that the drive pinion 'I3-engages the flange 10b. The device will now be rotating in the opposite direction'. When the brake 16 reengages the brake wheel 1l the airplane will be caused to loop-the-loop.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein. disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by'United States Letters Patent lisz-- 1. A toy airplane, comprising a hollow tower, a vertical hollow shaft rotatively supported in said tower, a drum coaxially fixed on the upper end of said hollow-shaft, an internal shaft rotatively supported in said hollow shaft and extending from the top thereof, a support member rotatively mounted on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an element causing frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for supporting an airplane, and a brake for holding said internal shaft against rotation.

2. A toy airplane, comprising a hollow tower, a'vertical hollow shaft rotatively supported in said tower, a drum coaxially fixed on the upper end of said hollow shaft, an internal shaft rotatively supported in said hollow shaft and extending from the top thereof, a support member rotatively mounted on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an ele-V ment causing frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for sup-` porting an airplane, and a brake for holding said internal shaft against rotation, and thrust bearings being arranged between the internal shafts.

3. A toy airplane, comprising a hollow tower, a vertical hollow shaft rotatively supported in said tower, a drum coaxially vfixed on the upper end of said hollow shaft, an internal shaft rotatively supported in said hollow shaft and extending from the top thereof, a support member rotatively mounted on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an element causing frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for support,- ing yan airplane, and a brake for holding said internal shaft against rotation, said support memberbeing provided with radially extending arms, an airplane being mounted upon one of the arms and` counterweight on'the other, and a universal end of said hollow shaft an internal shaft rotativelysupported in said hollow shaft and extending from the top thereof, a support member rotatively mounted 'on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an element causing frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for supporting an airplane, a brake for holding said in` ternal-shaft against rotation, and a brake for holding said hollow shaft.

5. A toy airplane comprising a hollow tower, a vertical hollow shaft rotatively supported in said tower, a drum coaxially fixed on the upper end of said hollow shaft, an internal shaft `rotatively supported in said hollow shaft, and extending from the top thereof, a support member rotatively mounted on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an element causing frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for supporting an airplane,

and a brake for holding said internal shaft f against rotation, said tower including a hollow pedestal, a tubular intermediate portion, and a hollow spherical top portion encasing the drum and other parts of the device.

6. A toy airplane comprising a hollow tower, a vertical hollow shaft rotatively supported in said tower, a drum coaxially xed on the upper end of said hollow shaft, an internal shaft rotatively supported in said hollow shaft and extending from the top thereof, a support member rotatively mounted on the extended portion of said internal shaft and connected with a gear meshing with gear teeth on said drum, an element causingI frictional engagement of said shafts, a motor driving said drum, a radial arm projecting from said support member for supporting an airplane, and a brake for holding said internal shaft 'against rotation, comprising a brake drum fixed on the shaft, a rod slidably mounted and provided with a brake shoe engageable against the brake drum, and an element by which the rod may be moved.

7. A toy airplane comprising a hollow tower, a hollow shaft rotative through said tower, an internal shaft rotative through said hollow shaft, a support member fixed on an extended end of saidinternal shaft, a loop-the-loop airplane mechanism rotatively mounted on said support member, a drive for said loop-the-loop airplane mechanism connected with said internal shaft, a flanged wheel on said hollow shaft, a brake wheel on'the other end of said internal shaft, a motor movably supported and having a drive pinion engageable against the an'ges of said anged wheel, a mechanism for manually moving said motor including a resilient element, and a brake associated with said resilient element and engageable with said brake wheel.

8. A toy airplane comprising a hollow tower, a hollow shaft rotative through said tower, an internal shaft rotative through said hollow shaft, a support member fixed on an extended end ofY said internal shaft, a loop-the-loop airplane mechanism rotativelyl mounted on said support member, a drive for said loop-the-loop airplane l mechanism connected with said internal shaft, a

iianged wheel on said hollow shaft, a brake wheel on the other end of said internal shaft, a motor movably supported and having a drive pinion engageable against the flanges of said iianged wheel, a mechanism -for manually moving said motor including a'resilient element, and a brake associated with said resilient element and engageable with said brake wheel, and comprising a pair of brake shoes arranged on opposite sides of said brake wheel, an operator rod connected with said brake shoes and constituting an operator for said mechanism for manually moving the motor. whereby when the rod is moved in oneI direction one of the brake shoes engages thev brake Wheel, and when moved in the other direction the other brake shoe engages the brake wheel.

9. A toy aeroplane, comprising a hollow tower, a vertical hollow shaft rotatively supported in said tower, a drum coaxially nxed on the upper end of said hollow shaft and having gear teeth thereon, an internal shaft rotatively supported in said hollow shaft and having a portion extending from the top thereof, a support member rotative on said extended end and connected with a gear meshing with said gear teeth, a source of power adapted to rotate said drum, a pair of diametricaliy opposite radially extending arms, projecting i'romsaid support member, an aeroplane mounted on one of said arms, a brake mechanism adapted to retard the rotating motion of said inner shaft to permit said aeroplane to loop-the-loop, and a weight on the other oi' said arms to counterbalance the weight of said aeroplane so4 as to require less force to make said aeroplane loop-the-loop.

FREDERIC A. CHRISTIANSEN.