US 1685707 A
Description (OCR text may contain errors)
E. .11. Mmm
TOY MAGNETIC CRANE Filed Sept. l5, 1.927
Patented Sept. 25, 192%..
EDWARID J". KEEDY, T SCHENECTADY, NEW YORK.
T? MAGNETIC CRANE.
4 Application filed September 15, 1927.
This invention relates to mechanical toys, and particularly to a toy simulating a crane. The general object ot the present invention is to provide a toy olE this character which is t5 very simple, which may be cheaply made, and
lllll fllll which is provided with a permanent magnet whereby steel articles may be lifted by the crane.
A -further object is to provide means whereby the magnet may be readily detachedtrom the article at any point so as to permit the article to be deposited at the place desired.
lli/ly invention is illustrated in the accompanying drawing, wherein ligure 1 is a side elevation ot a toy crane constructed in accordance with my invention;
lFigure 2 is a vertical sectional view through the magnet holder or casing, showingthe magnet in elevation; 0
ligure 3 is a like View to Figure 2 but showing the magnet raised.
Referring to this drawing, designates a base ot any suitable character which may be mounted upon wheels or otherwise as desired. Swingingly mounted upon this base for rotation in a horizontal plane is the supporting trame, designated generally 11, which is made ot metal and may simulate the engine hous ing, cab, etc., ot a swinging crane. This trame is mounted for swinging movement upon the pivot pin 12 and the frame is shown as formed at one end with the vertical braces 13. Extending through these braces Ais the axle 14: ot the winding drum 15.
ljivotally mounted at 16 upon the lower ends of these braces 13 is the crane arm 17, preferably formed ot two longitudinally eX- tending members connected to each other in any suitable manner, or this crane arm may be Jformed ofone member. The crane arm at its outer end is connected to a cable 18 which passes over a pin or pulley 19 and down around the winding drum 15. l latch 201s attached at 21 upon the trame and extends upward toward the drum. One iiange 22 oi the drum may be provided with the teeth 23 with which this latch is adapted to engage so as to hold the drum from rotation. Any suitable means for this purpose may be used but the latehing means which T have shown is simple, cheap and cannot readily get out of order.
Pivotally connected to the outer end of the crane arm 17 is a housing 24, preferably ot aluminum. This case is rectangular in plan view and is provided with the upwardly ex- Seral No. 219,723.
tending ears 25 which are pivoted upon a pivot pin 26 to the members constituting` the arm 17. Disposed within this housing and vertically shift-able therein is a permanent magnet 27, preferably in the torni ot a horseshoe magnet, and this magnet is attached to a cable 28 which passes through an opening'28a in the wall of the housing and extends over a pulley 29 mounted upon the pivot pin 26 to a slide 30 mounted within a guide 31'... The
guide and slide are provided with coacting dctents so as to hold the slide in any desired position. 1When the slide is shifted rearward, it elevates the magnet 27 within the housing 24, and when it is shi'l'ted forward, it lowers the magnet to the bottom oit the housin A steel bar, which is designated A, is illustrated as the article which is designed to be picked up by the magnet. llVhen the magnet is seated or is lowered within the housing and the housing brought in contact with the steel. bar or any other metallic article, the magnet will attract the bar, then by turning the l1andle oit the winding drum the crane arm may be raised, thus raising the housing and the article as, 'for instance, the steel bar, which held by attraction to the magnet. The crane may be then shifted to any desired position and the crane arm lowered to deposit the article. T it be desired to drop the steel bar or depositit, the magnet is raised by pulling back upon the slide 30 and the distance between the magnet and the steel bar is increased until the pull exerted by the magnet becomes so weak that the bar drops. As soon as the slide 30 is released, the weight ot' the magnet will cause it to re-seat or drop 'downward within the 'housing 24 against the bottom wall thereof. Although the housing has been designated as preferably constructed of aluminum, it is, ot course, understood that any suitable non-magnetic material may be employed. the use of the crane tor picking up articles ot smaller size than the case which otherwise would be drawn into the housing by the magnet is permitted.
TWhile T have shown the principle of my in vention in the accompanying drawing, it will be obvious that it may be embodied in many different forms without departing from the spirit ot the invention as defined in the appended claims.
T claim 1. A magnetic crane of the character described including a crane arm mounted tor By providing the bottom wall,
shifting movement, a magnet housing et nonmagnetizable material carried by the eX- tremity of the crane arm, a magnet disposed within the housing, and means for raising or lowering the magnet within the housing to thereby shift the magnet toward or from the lower edge of the housing.
2. A toy magnetiecrane including a crane arm, a housing of non-magnetizable material pivoted to the free end of thearm, a permanent magnet disposed within the housing and vertically movable from the lower end oit the housing te the upper end thereof, and means mounted upon the crane arm where by the magnet may be raised or lowered. Y
3. A toy magnetic crane comprising a base, ahousing mounted upon the base, a crane arm pivoted upon the housing, a winding drum, a connection between the winding drum and the outer end of the crane arm whereby the crane arm may be raised or lowered, a housing of non-magnetizable.material pivotally mounted upon the 'forward end of the crane arm, a. permanent magnetmounted within the housing, and means whereby the permanent magnet may be lifted within the housing or lowered.
4. A toy magnetic crane comprising a base, a house mounted upon the base, a crane arm pivoted upon the house, a. winding drinn, a connection 'between the winding drum and the outer end'of the crane arm whereby the vcrane arm may be raised or lowered, a magnet Ihousing' pivotally mounted upon the 'forward end oitv the crane arm, a permanent magnet mounted within the housing, means whereby the permanent magnet may be lifted within the housing or lowered including a cable attached to the magnet and extending upward through the top of the housing and then down along the crane arm, and a slide connected to said cable.
5. A toy magnetic crane including a base, a. house pivotally mounted upon the base for movement in a horizontal plane, a crane arm pivotally mounted upon the forward end of the house for vertical movement, a'drum opferatively mounted upon the housev and connected by a cable to the crane arm, means for rotating the drum and for holding it 1n any rotated position, a magnet housing pivetally connected to the forward end of the crane arm, a permanent magnet mounted within the housing, a flexible element to which the permanent magnet is attached and by which the magnet may be lifted or lowered within the housing, said flexible element extending up ward through the top of the housing and into the crane arm, a pulley over which the element passes, and a member mounted upon the crane arm and to which said flexible element is connected and by which the tlexible element may be retracted to litt the magnet.
G. In a magnetic toy, a non-imignetic magnet housing, a support there tor permitting the housing to be raised and lowered, a mags net within the housingl and means operable to raise and lower the magnet within the housing to thereby reduce or increase the distance between the lower end ol the housing and the magnet to thus pei-init the niagnet to transmit magnetism through the lower end of the housing and thus magnetize an object to be li l'ted.
`or by increasing said distance, cause the de- 'achment oi the object from the magnet.
7. In a magnetic toy, a, non-magnetic housing, a support therefor permitting the housing to be raised and lowered, a magnet within the housing and means operable to raise and lower the magnet within the housing in any position ot the housing, whereby when the magnet is lowered to cause it to exert attraetion through the lower end ot the housing to thus magnetize articles and support them and when the magnet is raised with relation to the bottomrot1 the housing to release said articles.
8. In a magnetic toy, a non-magnetic housing having a bottom, a support therefor permitting the housing to be raised and li'iwered, a magnet within the housingl and movable rela tive thereto toward or from the bottom ot the housing, and means operable trom the exterior ot the housing to raise or lower the magnet within the housing to thereby, when the, magnet is lowered, exert attraction through the bottom olf the housing to an article to be raised and, when the magnet is raised, cause the release of said object Atrom the magnet.
In testimony whereof I allix my signature.
EDIVARD J. KE'EDY.