US1775318A

US1775318A - Closure cap for tanks

Info

Publication number: US1775318A
Application number: US338353A
Authority: US
Inventors: Joseph L Morgan
Original assignee: MARY G CALLAGHAN
Current assignee: MARY G CALLAGHAN
Priority date: 1929-02-08
Filing date: 1929-02-08
Publication date: 1930-09-09
Anticipated expiration: 1947-09-09

Description

Sept. 9, 1930. J MORGAN 1,775,318

CLOSURE CAP FOR TANKS Filed Feb. 8, 1929 lllllllulml 40 ATTOR F Y lit) JOSEPH L. lilltilllttillhl l', @F SHREVEPQRT, LUUISIANA, .ltfiSIGNOE or GEE-HALF. T MAR' F G. GALLAQHAN, Uh DLAS, TEXAS etosuian can run earns Application died February a, 19%. serial na'aaaaaa This invention relates to improvements in locks, more particularly locks. for filler caps for tanks containing 11 uids.

The primary object ot the invention is the provision or a locking arrangement for tiller caps for motor vehicle gasoline tanks to prevent unauthorized removal of the fuel; also prevent filling of the tank in case of attempted theft of the vehicle.

Another object of the invention is to provide a lock of this. nature which is simple in construction and inexpensive of manufacture.

The invention will be clearly understood from a perusal of the following detailed de scription, taken in connection, with the accompanying drawings, forming part of this specification, in which:

Figure 1 is a side elevational view of the filler cap, partly broken away, and in position on a fuel tank,

Figure 2 is a horizontal sectional view,

taken along the line 22 of Figure 1, in the y direction of the arrows,

Figure 3 is a view similar to Figure 2, but showing the lugs of the cap in a difierent position, the bottom plate of the cap removed, t

Figure 4 is a bottom view of the cap, the slidable lugs and. plate being removed, J

Figure 5 is a cross-sectional view'ofthe cap and a part of a tank, illustrating the method of connection of the cap with the tank,

Figure 6 is a horizontal detail sectional view, taken along the line 6-6 of Figure 5, Figure 7 is a side elevational view of the key post of the locking mechanism 'ofithe cover.

Fi ure 8 is a partial top plan view of a gasoline tank, showing the construction of the neck, Figure 9 being a cross-sectional view thereof, along the line 9-9 of Figure 8,

Figure 10 is a detail sectional view of a modified, form of In of the lock mechanism,

Figure 11 is a tional view of the tank neck and one lug, showing the progressive movement of the I lug in operation of the lock mechanismof the cap, and

ragmentary detail secsloped to a point 3, as will be hereinafter more particularl described. The neck includes recesses 4 or reception of the lugs 5. -These lugs are integrally formed with the central rounded portion 6 oi the ca 7. The portion '6 is bored for the in mechanism 8.

he tank neck, lock mechanism and lugs purpose o "seating the lockare in common use and are described and illustrated merely ness in description. The invention comprises the slidable bolts lOWhich forms a means for locking the cap in locked position on the neck.

for the purpose of clear.-

By reference to Figure 4:, it will be ob served that-the key post 8, which forms part of the lock mechanism, includes two pins 11 which, when the he 12 is turned, come into enga ement with t e recess ll in the bolts 10. etween the bolts is alao disposed a spring M, the opposite ends of the spring abutting the shoulder 15 of the bolts. A plate 16 is placed over the spring 14 and holds the bolts in position.

The outer ends of the boltsare rounded and the inwardly-turned edge of the neck. In the lowest broken-line position of the bolt, as-

showninFigure 1l,the bolts have passed under the neck.

,In the operation ofv the cap, the lugs 5 vare first placed in alinement with the re-' cesses 4, as shown in Figure 3 and the cap pressed inwardly. This will draw the bolts bevelled to enable the cap to be more easily lip. the spring 14 forcing the bolts outwardly.

7 bring a tighter grip of the lugs on the inner within the circumference of the bent-over portion A of the neck 2, and bring the lugs 5 below the portion'A. The ends of the bolts are then bearing against the part 3 of the inner edge or lip of the rim. The cap is then turned to the right, whereupon the bolts i will occupy the position shown in Figure 2, with the lugs and bolts both underneath the In this pqsition, due to the angular relation of the lugs and bolts, it is impossible to remove the cap without the key. If the lugs are brought into alinement with the recesses 4, the bolts are still under the lip, and Vice 'versa.

In Figure 10 is shown a modified form of lug and wherein a spring B is employed to portion of the neck. v

If an attempt is made to remove the cap without the proper key, the cap will rotate in anti-clockwise direction, whereas the two bolts 10 of Figure 2 will make contact with the two fins 3 of Figure 9, thereby holding the two lugs 5 Figure 2 in position underneath lip of tank neck. This prevents removal of the cap as long as bolts are so engaged, which when disengaged by 0 eration of proper key, bolts 10 Figure 2 will e withby use of one hand.

filler neck and rotated from the registry podrawn from contact at? Figure 9, allowing cap to be further rotated in anti-clockwise direction, until lugs 5 Figure 2 makes contact with fins 3 Figure 9 and in position in aperture 4 Figure 8 when at suchtime with bolts 10 still withdrawn by operation of key, cap may be lifted from neck of tank. This can be accomplished by one operation of key in turning in anti-clockwise direction with draws bolts and further turning bringing.

lugs in position in aperture 4 Figure 9 al-.

lowing entire device to be lifted from tank What is claimed as new is:

' In a lockin mechanism for filling tub caps, the combination with a filling tube having an inwardly extending notched flange,

a filler cap having a lug so located as to pass through the notched portion of said flange when the lug and notch arebrought into registry, and when the cap is in position on the sition said lug will be held beneath the said flange, spring means on said lug for insuring frictional engagement with said flange, a

pair ofbolts carried by the cap extendingin opposite directions and permanently angularly removed from said lug, yielding means -'for normally forcing said bblts apart so as to engage beneath the flange of said filling "tube, and means for retracting said bolts so that the cap may be removed from the filler neck on bringing said lug and notch into reg stry.

In testimony whereof I aflix my signature.

JOSEPH L. MORGAN.