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Oct. I, 1946.
c. c. CRAIG
2,408,376
' AUTOMOBILE JACK
Filed Dec. 25, 1943
2 Sheets-Sheet ?l
Oct. l,Y 1946. .
c. c. CRAIG
2,408,376
AUTOMOBILE JACK
Filed Dec. 23, 1943
2 sheets-sheet 2
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Patented Oct. 1, 1946
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2,408,376
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TED STATES Par-ENT
2,408,376,
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AU-TGMOBILE‘ .IACKZ
Ghanese. craig, Morrill, Nebr.
‘Application December 23, 19.43„ Serial No. 515,442
4; Claimsl (Cl. l,2511-1527 )f
f»
1:
.
.
*This invention relates to and is primarily
adaptedf for~> usel in connection'l withv automobiles,
although c-:apab-le‘ofl employment in various rela
ÜÍOHS;
--
It is paisti-cular]yi aimed' to» provide a construc
plate I¿2'and,base Ill-_ '
Aloop 25 .extends rearwardly from the links or
leversl I4, preferably beingpivotally connected
arrangement: in very compact relation so as to»
become-'apparent froma considerationr of.' the de
scription following takenzin:` connection with ac
companying drawings. illustrating an operative
embodiment.
‘
.
'
Im said.v drawings.:`
Figline 1a.
a', View in.
side. elevation showing
thezimproved jack;I
»
.
Iiçïgfllree 2A is- a'. horizontal. viewf- taken >on the: line
2.5-2
oi‘;;-Fig1.lre.1.,“,V
. Figure@
,
‘
»
.
«
verticalzsection.takenon thexplane
ofrlîne‘är-S'ofrFigurezç
f
'
.
'
Figure: 4:;ê is: af partial plan yView showing; anv ex
tension in place on the Ibase;
n
'
Fîgurez‘ä is a1.. verticalisection taken on the line
5_5 of Figure 4; and
Figure 6 is a fragmentary longitudinal sectional
view through a modified form of operating lever.
Referring speciñcally to the drawings wherein
like reference characters designate like or similar
parts, I provide a base I0 of any suitable length,
dependent upon the particular automobile to be
jacked and the operating space which accommo
dates such base. The base may be constructed
of Wood or any other preferred material, and
along the top preferably has a metallic wear
plate I2 bolted or riveted thereto as at I3.
Elevating or lifting levers I4 and I5 are em
'^
_wear-plate I2î Itis particularly to be noted that
levers I4“ at their lower end-s have guard exten
‘sions 24, below the- roller 23,' and at all times
located below- the upperv surface of the wear»
tion. whichis simple, durable, andv relatively in
expensive, and~ capable of rapidr operation- merely
through». the manipulation of aflever.
.Another object is to'- provide a construction
wherein the- partsv arefcoll'apsible and capable of
occupyf’minimum- space4 when not in use;.
The ‘more` specific` objects` and: advantages will
2
sleeve or roller’ 23:` vadapted- to travelv along' the
thereto," and'I extending» rearwardly from the loop
25 are a> pair of draw elements Z6> and; 212 pref
erably in nature ofr metallic chains;
Anoperating leveris providedI at 28, of anyl suit
able" construction, preferably detachable as
shown. This lever may havea handle 29- as of
Wood with a pair of sidey plates» 30l bolted thereto
as'at 31, and beingfspaced.' A'apart below such
handle. In the >space'between the sideplates. 38
one or more hooks 32. are.` movable, being pivoted
at33. to> the sidey plates by means of bolts, which
20 are adjustable, since a seriesA of openings 34 are
provided through the side plates for interchange
thereof. Such side plates Si) have at their lower
. ends notches 35 whereby they may be engaged
with» and fulcrumed on a transverse. pin’ßíì car
ried. by the base I0. and crossing a slot or bifur
cationk 31 in one- end. thereof. Thelatter slot.. or
bifurcationV receives the lower end of the. side
plates 30 as shown in Figure 1 and enables oper
ation thereof on theaXis of the pin 36.
30
In operating the device the chain 26 is an
chored at one of its links onto a preferred hook
32, and thereupon lever 28 is pulleolV to the right
in Figure l, thus drawing the lower ends of the
levers I4 toward the operating lever, with roller
23 travelling on the wear-plate I2, and accord
ingly elevating the roller I8 and the spring I9
and the vehicle of which it forms a part. At the
desired elevation for the roller I8 the other chain
21 is engaged with a hook 39 suitably fastened
on the top of the base I0 at one side of the chain
ployed, preferably in pairs as shown, the same 40 2S.
With the parts thus held elevated through
being pivotally connected together by a bolt I 6
y the engagement of the chain Z‘I’with the hook
passing therethrough/at suitable openings I1, a
39, chain 26 may be released from the engaged
series of the latter preferably being employed
hook 32 and the lever 28 moved to the left in Fig
to enable adjustment. Spacing the levers I4 apart
ure 1 and reengaged with a link of the chain 26
and surrounding the bolt I6 is a sleeve I8 which
and the lever is again pulled to the right further
is adapted for direct engagement with the part to '
to elevate the roller I8, if necessary. This oper
be elevated, usually one of the suspension springs
ation may be repeated'as many times as desired.
of the automobile as suggested at -I9 in Figure 3.
It will be understood that the lever 28 is de
l The levers I5 are pivotally connected by a
50 tachable from the base by disengaging it at the
bolt 2 0 passing through suitable openings thereof,
notches 35 from the .pin 3B. In some instances a
and one of a series of openings 2| provided
base
longer than that shown will be advisable, in
through theA base I0, to enable adjustment. Said
which event Van extension base 40 is employed.
levers I4 are connected by a bolt or rod as at 22
This extension base has at 39' a hook equivalent
near their lower ends, and journaled thereon is a 55 to that at 39, `and at 36' and 31’ has a pin and
2,408,376
slot or bifurcation equivalent to those at 36 and
31, so that when the extension is in place the lever
28 may be engaged with the pin 36' and be actu
ated in cooperation with chains 26 and 21 as when
engaged with the pin 26. In order separably to
connect the extension 40 in line with the exten
sion I0 as shown in Figure 4 metallic straps 4|
and 42 are bolted or riveted as at 43 to the lower
and upper surfaces of the extension, and they ex
tend rearwardly beyond such extension, being
riveted together as at 44. Strap 42 preferably
has a depression or loop at 45 and a tongue at 46,
base having hook means engageable with one of
the draw elements, and an anchoring hook on
the base engageable by the other draw element.
2. A jack of the class described comprising an
elongated base, a lever pivoted to the base, a lever
pivoted to the first-mentioned lever above the
base, means carried by the second-mentioned
lever to travel along the base, and means asso
ciated with the base operable to draw the second
mentioned lever toward the Íulcrum of the ñrst
mentioned lever- to elevate them at their junction,
and guard means on the second-mentioned lever
extending therefrom below the upper surface of
the base, said means on the second-mentioned
the tongue being insertable into the bifurcation>
31 beneath the pin 36 and then into overlapping
movable on the base ‘being a roller, a wear
engagement with the upper surface of base I0 15 lever
plate on the base along which the roller moves,
pin 36 '
as shown in Figures 4 and 5, with the
said means to actuate the levers consisting of a
k
pair of draw elements extending from the sec
AS previously intimated, I may use an operat
ond-mentioned lever, an operating lever on the
ing lever such as 28 with but a single hook like
base having hook means engageable with one of
20
that employed at 32. Such a modiiied form of
the draw elements, and an anchoring hook on the
lever is shown in Figure 6. It has a handle, for
base engageable by the other draw element, said
instance oi wood, at 29’ bolted at 3l' to a pair of
base having a slot, a pin crossing the slot, and
side plates 30’ having notches 35’ in their lower
said operating lever extending into the slot and
edges for engagement with either pin 36 or 3B’.
The single hook is shown at 32' for accommoda 25 having a notch engageable With said pin.
3. A structure of the class described having a
tion in the space between the side plates 39' and
base, jacking means thereon including an operat
to which it is pivoted by a bolt at 33’.
ing lever, said base having a slot and a pin cross
Various changes may be resorted to provided
ing said slot, saidloperating lever having a notch
that they fall within the spirit and scope of the
whereby it may extend into the slot and Íulcrum
30
invention.
on said pin, and an extension lbase also having a
I claim as my invention:
similar notch and pin to accommodate said oper
1. A jack of the class described comprising an ~
ating lever,_ said extension at one end having a
elongated base, a lever pivoted to the base, a lever
strap provided with a depression to receive the
pivoted to the first-mentioned lever above the
adjacent lpin, said strap being of a length to
base, means carried by the second-mentioned 35 engage the upper surface of the base.
lever to travel along the base, and means asso
4. A structure of the class describedhaving a
ciated with the base operable to draw the second
base, jacking means thereon including an operat
mentioned lever toward the fulcrum of the first
ing lever, said base having a transverse pin, said
mentioned lever to elevate them at their junc
40 operating lever having a notch whereby it may
tion, and guard means on the second-mentioned
fulcrum on said pin, and an extension base also
lever extending therefrom below the upper sur
having a transverse pin to accommodate said
face of the base, said means on the second-men
operating lever, and means at one end of said ex
engaged in the depression 45.
tioned lever movable on the base being a roller, a
tension provided with a depression for coupling
wear-plate on the base along which the roller 45 engagement with the first transverse pin.
moves, said means to actuate the levers consist
ing of a pair of draw elements extending from the
CHARLES C. CRAIG.
second-mentioned lever, an operating lever on the
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