|Publication number||US1994060 A|
|Publication date||Mar 12, 1935|
|Filing date||Jun 14, 1934|
|Priority date||Jun 14, 1934|
|Publication number||US 1994060 A, US 1994060A, US-A-1994060, US1994060 A, US1994060A|
|Original Assignee||Ashkenas David|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
March 12, 1935. D, ASH/KENAS 1,994,060
BA'SE FQR LIFTING JACKS Filed Junl 14, 1934 fg, Y??? Z INVENTOR BY` v I' E 'QM ATTRNEW Patented Mar. 12,1935 v V i y UNITED t STATES PATENT OFFICE 1,994,060 Y l i BASE Fon LIFTING JACKS Davia Ashkenas, Middletown, N. Y. Application June 14, 1934, serial No. *130,554 Y 4 claims. (o1. 254;-4)
This invention relates to a portable base for ment 12 is carried by the section 10 which, tolifting jacks. f Y gether withthe abutment '7, maintains the sec- It has been my experience that when liftingv tions of the handle in alignment when the secjacks are used on soft ground that the base of tions. are in their extended positions. The sec- 5 the jack sinks into the ground and sometimes tion 10 carries a grip portion 13. It is of course 6 unevenly so that the jack is ineffective to -lift to be understood that the number of handle secthe object to which it is being applied. tions may be increased or decreased as desired.
Y An object of this invention is to provide a The depth of the angesof the stationary sec- Vjack base that is so constructed that itmay be tion 4 is, preferably,'greater than the combined applied to an ordinarily inaccessible part ofthe thicknesses of the sections 5, 8 andlO so that 10 object to which it is being applied by the operawhen these sections are folded upon each other tor standing at a i'emote point and so that it and are together folded onto the section 4 the may quite easily be pushed into position. flangeswill maintain the folded sections in their A further object of the invention resides in so folded condition and ready for storage.
constructing the base that it will be prevented In order that the jack may be securelyheld in l5 from sinking into the ground to an objectionable positionon the base I have provided a pair of extent and so that it will maintain a horizontal gripping jaws 14 that are pivoted to the base at position. 15 and which arerecessed at 16'for the reception( Afurther object of the invention resides in the of theV jack. The-free ends of these jaws are provision of means to removably hold the jack in normally drawn together by a spring 17 that is 20 v position and of means to hold a foldable handle attached to the jaws on the side of the pivot in its folded position for storage purposes. remote from the free ends of the jaws.
I have found the device admirably adapted for When it is desired to use the device the jaws use in elevating automobiles for the changing 14 are separated and the jack placed betweenthe of tires or other repairs. Vjaws by which it is held in position on the base v25 I have illustrated one form of the invention ready for use. but it is to be understood that the invention is The handle of the device having been exnot limited to this particular form as it is setended, the base with the jack thereon is pushed lected for the purpose of illustration only. into position beneath the object that is to be ele- In the drawing: vated and the jack may then be operated in the '30 Figure 1 is a perspective View of the device; usual manner. The area of the base is such that Figure 2 is a longitudinal sectional view; it will be prevented from sinking into the ground Figure 3 iS transverse SeCiiOnal View; and and the runners 2 will prevent the base from Figure 4 is a view of a modification of the jack slipping to one side or the other. j
holding jaws. I have illustrated a modification of the jack 35 The form of the invention illustrated in the holding jaws wherein the jaws 14 are provided drawing includes a base portion 1 which is with cam faces l5' so that when the jack is shown as rectangular but which may be of any forced against the same the jaws will separate t desired form and Which iS Di'OVded With a dOWIland thejack will be permitted to enter the recess lo Waldly @Xterlding funnel ai: each llgtudnal between the jaws. Moreover the jaws are pro- @dge 2, which Will facilitate the Sliding 0i the vided with abuiments 16' against Whichihe jack deve OVer @ugh 0r Soft ground When the device may be forced with the result that the jaws will 1S bemg put m130 plae be more tightly drawn together. These abut- A foldable hanue'ls attached to the base por' ments also act to protect the spring sothat it 4o tion l and consists of a stationary section 4 Wil, not be injured by the' jack While it is in that is secured to the base portion and extends lac On'the base from the rear edge thereof. This section of the p il t I 1 handle is U shaped in cross section and is bifur- W a C zum 1s' cated at its end. A section 5 is pivoted to the. L In a devlce of the dass desnbed a base section 4 at 6 and carries at its opposite end an portlm rurmrS on the loggltudinal edges. of 50 the base portion, a handle including a section abutment 7. A section 8 of the handle is pivoted l n to the Section 5 t 9 on pivot that is arranged rigid with the base portion 'and sections foldable at right angles to the pivot 6. This section 8 is, Orl each other and 011 the rigid SSCOILfhG rigid in turn, pivoted to a third section 10 at 11 on `a section being U shaped in cross section and pivot that is parallel to the pivot 9. An abutadapted to house the foldable sections.
2. In a device of the class described, a base portion, and means on the base portion to hold a jack thereon, said means including a pair of jaws pivoted on the base portion and a spring for holding the free ends of the jaws together.
3. In a device of the class described, a base portion, and means on the base portion to hold a jack thereon, said means including a pair of jaws pivoted on the base portion and a spring 10 for holding thewfree ends ofthe jaws together and having cam faces to facilitate the entry of the jack between the jaws.
4. In a device of the class described, a base portion, a handle including a section rigid with the base portion and sections foldable on each other and on the rigid section, the rigid section being U shaped in cross section and adapted to house the foldabie sections, and means on the base to hold a jack thereon.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2580743 *||Apr 29, 1948||Jan 1, 1952||Eckels Horace C||Folding base for automobile jacks|
|US2585989 *||Nov 25, 1946||Feb 19, 1952||Atwell Henry G||Ball pitching and catching device|
|US4442767 *||Jun 28, 1982||Apr 17, 1984||Johnson Rick A||Juice press|
|US6938954 *||Jan 22, 2004||Sep 6, 2005||Ronald D. Hendren||Rotatable child safety seat|
|U.S. Classification||248/346.4, 254/DIG.100|
|Cooperative Classification||B66F13/00, Y10S254/01|