US 1553889 A
Description (OCR text may contain errors)
Sept. 15, 1925. 1,553,889
W. A. F. BOETTCHER BA BY' CARRIAGE Filed April 10. 1922 4 Patented. Sept. 15, 1925. I
UNITED; STATES V WILLIAM A. Bon'rroHEn, or CHICAGO, ILLINOIS.
Application m April 10,1922. Serial No. 551,428. p
' To all whom it may concern Be it known that I, WILLIAM A. F. Bonr'r- CHER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Baby Carriages, of which the following is a specification.
My invention relates to baby carriages, and more particularly to a baby carriage which may be used to put an infant to sleep without requiring the constant attention of an attendant.
The primary object 'of'the invention is to provide in a vehicle ofthe above mentioned character a mechanical means where by the same may be moved to and fro without necessitating the presence of an attendant.
A further object of the invention is to provide a means for giving the carriage an undulatory motion as it moves to and fro and thus serve to induce the infant to sleep. 1 i
A still further object of the invention is to provide a device of the above mentioned character which is simple in construction, highly efiicient in operation and which may be cheaply manufactured.
The above and other objects are attained by means of a novel combination and. ar-
rangement of parts to be hereinafter de scribed and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing form ing a part of this specification and in which the preferred embodiment of the invention is disclosed.
In the drawing,
Figure 1 is an elevation of a baby carriage with my invention applied thereto, the running gear being shown in section;
Fig. 2 is a bottom plan View, and
Fig. 3 is av section on the line 3-3 of Fig. 2 illustrating a portion of the mechanism.
Referring specifically to the drawing, 5 denotes the body of the carriage as a whole, supported by the usual springs 6 to which are secured the rotatable front and rear axles 7 and 8 respectively, the same carrying wheels 9 which are'fastened to the axles in such a way as to prevent relative rotary movement thereto.
' Numeral 10 denotes an electric motor affixed to the bottom of the body 5 in any 55 convenient manner. The shaft 11 of the motor 10 carries a small gear 12 which meshes with a reducing gear l3,the same being rotatably secured to a depending flange let of angle bracket 15 by means of bolt and nut 15 and 15 respectively. Angle bracket 15 is secured to the bottom of the vehicle in any convenient manner. The reducing gear 13.
has a radial slot 16 in which there is slidably contained a wristpin 17 carrying a reach bar 18, the forward end of which is provided with rack teeth 18* on its under face adapted to engage a pinion gear 19 keyed or otherwise rigidly secured to the front axle 7. The wrist pin 17 maybe adjustably secured at various positions intermediate the ends of the slot 16 to limit or extend the stroke of the'reach bar 18.
From the foregoing it will be readily apparent that when the motor 10 is actuated, the reducing gear 13 will be rotated on its axis 15 and the reach bar 18 will be given a reciplrocatory movement through the me dium of wrist pin 17 carried inslot 16, thus causing the carriage to be moved to and fro by the operation of the rack 18 on pinion gear 19 of the axle. I On the rear axle 8 there is rigidly mounted a cam or eccentric 20 adapted to contact at all times with a depending bar 21 secured to the bot-tom of the vehicle at its rear portion. By this construction it .willbe seen that when the vehicle is operated as hereinbefore described, the rotating of the cam 20 in contact with the depending bar 21 will give the body of the vehicle an undulatory movement as it is moved to and fro thus tending to sooth the infant and cause it to sleep.
While I have described the preferred embodiment of my invention it will be under stood that I do not limit myself thereto but may make such various changes and modifications in the same as fairly fall within the spirit and scope of the appended claims.
1. The combination with the running gear of a vehicle, including axles and wheels fixed thereon, and a body spring supported by and above said running gear; of means for reciprocating the running gear and vertically and longitudinally oscillating the body with respect to the running gear including a hanger depending from the under side of the body, a crank wheel having a shaft journalled in the'hanger, means to rotate the crank wheel, a pinion fixed on one axle, and
a rack bar extending longitudinally and p downwardly from the crank Wheel and engaging the pinion.
2. The combination with the running gear of a vehicle, including axles and Wheels fixed thereon, and a body spring supported by and above said running gear; of means for reciprocating the running gear and vertieally and longitudinally oscillating the body with respect to the running gear including a hanger dependingfrom the under side of the body, a crank Wheel having a shaft journalled in the hanger, means to rotate the crank Wheel, a pinion fixed on one axle, and a rack bar extending longitudinally and downwardly from the crank Wheel, and engaging the pinion; and other means for imparting vertical. oscillatory movement to one end of the body with respect to the running gear.
In testimony whereof I aifiX my signature.
WILLIAM A. F. BOETTCHER.