US2582665A

US2582665A - Floor jack

Info

Publication number: US2582665A
Application number: US61579A
Authority: US
Inventors: Wiggins Marvin
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-11-23
Filing date: 1948-11-23
Publication date: 1952-01-15
Anticipated expiration: 1969-01-15

Description

M. WIGGINS 2,582,665

FLOOR JACK 2 Sl-IEETS-SHEET 2 Jan. 15, 1952 Filed Nov. 23', 1948 I, I I

Patented Jan. 15, 1952 moon JA'oK r mammwiggms, FortM ei mn. "ApplicatioriNovember 2s,-194s;tseria1 Nof61,579

(elven-+16) 'e'hClaims.

u'nmsinvention relates tmdevices ror aiatflitating layingitongiue and groo' vc 'flooring and particulaii includes a smemztool' that is clamped 011 a joist onrrwming member and:which' -is provided with lever bywhioh considerable pressure may beiplacedz'against a; piece of -flooringto force-the tongueiiintovthe groove andwvhieh also" hold-s the flouting tiehtuuntik it' is nailed.

'i'lillei purpose of this invention isi-to'providea flooring jab]: :for tightemng uptongue azid=g-ropve hosting 80 that the i joint may be completely closed. i

iti is -allwaysidiffieult 4:0 lay tongue anwgroove flooring" with tight joints as it is desired" to have the tonguel fit" tightly"in the groove and for' this reason -ther grooves do not slide freely"-overthe tongues. Most earp'enters hammerthetongue to foree grooves over the tongue of the'next piece ofriifloorines and this unsets the-tongue so that it iszdimeult to dorce" the next piece offlooring ever. With this-thought inmindthis invehtioncontempiates za' jack that may readily be moved" from one: 3 oist to another -and which is adaptd to be quieklye clamped 'to' the joist-=and=-readilyactuated by a hand lever to forcemfijam the" groove of? one; piece of 'floo'ring oven the tongue of another.

llThe iobject of -this invention is," therfore," to provfide a uni'que flooringj able that is adapted to beiquickly clampedl on" ai joist aridwhich includes a' forcing: e1ementthat not on1y'" forces'thefiooring'together but holdsithe flooring in positionuntil'it is nailed.

Another object- 01 the 'inverition is "to provide amend actuated jack' for forcing pieces oftongue and groovefflooring together that-may readily be re'lea'sed atterhuse.

:Another' obiect of the'*inveiition is to provide a fioorq'ack for forcing-tongue and groove"flooring together that m'ay-readi'ly"-be"'fblddso that 2 it: may be -earried in the average tool "box.

A further bbj'ect or the inventiomis to'provide an improved fio'or ja ck fonhold ing tongue and groove fiooringwhile'nai1ing-which-is ofa simple and economical construction.

5 2 trating the'device'oma "floor joist with the'forcing bar irrengagementwtitha'pieceof'flooring and with the hand lever broken away;

Figure' 2--is -a"view showing a sideelevation of thefloor jackwith the parts inzthe; position. as illustrated in-Figure 1 -Fig-u-re "3 "a "vertical longitudinal section throughthe floor jack taken'on 'line3 3 Of'Eigure l anid" with the partsin' the'same relative positions; 7

Figure 4 is a view showing an end elevation .of thefioor -ja'ck'taken on" line4- 4 of Figure'3; and

*Figure 5 is *a cross' section through' the jack taken on line 5*5' ofFigureZ.

"Referring now. tothe drawings where-inlike reference "characters denote corresponding;- parts thefloor 'packof this-invention is formed with a base I t having a forcing bar I I slidablyimounted on the -forwardend;blamping sides I2 and I I3 pivotal-lymounte'dmn the base by pins I4 and I5 respectively, a-cam =I6-actuated by handle II,

' and a hand lever l8 removably-mounted in a,

socket I9 by a thumb screw 20.

The base i I t "is formed of afiatrectangular shaped member-and thebar I I is-carried by pins 2 I" and 22--'which extend into sockets 23 and) 24 in the-fiforward end, respectively. The *bar I I is provided 'with a- 'groove 25 thatie adapted to fit overa tongue 2 6-'-of I; a piece of flooring 2 I. The bar II is actuated bythe hand 'lever 18 through the socket I 9 which-is pivotally mounted by a'pin 28 in

1ugs

29 and 30 that-are mounted froni'the-sides of'the socket I9. "The opposite end of the brace is attached to the' bar I I by: a hinge on M -with =sorews35. "Afterthe-hand lever I8 has been"- drawn forward" to force the' fioo'ring into'place, itis heldin this position-bye: latchh V V 'With these andiitherobrects" and advantages ing-"b'ar'or 'latch 36;"Whi'0h is pivot'ally mounted on-the-socketby a pin 31, the opposite" end-of the bar beingprovided with a: proj action: 38" that drops =ihto-teeth Win the .upper' surface or the base IlJyas shown in Figure 3.

The ackis' clamygxectin operatiye" position by the sideplates I2 and throu'ghthe cam 1,6; the sloping'sid'es of "which 'engageilugs'" 40 and" 4 I.. on the inner surface of the platesIZ and 1,3, respectively; .andas th'handle' '1 L of the camlis forced downwardly the lugs 40 and 4 I. .are' rforcednutwardly which a'dtion forcesithe. points 42-(andh43 into the sides biaj'oistT-M. sThesides' I2 andal3 are resilientlyheld with thlugs 40 and 4| against 3 the cam by a spring 45 the ends of which are attached to the upper ends of the sides. The cam I 6 is pivotally mounted in the sides 12 and [3 by a pin 46 and the handle I! is attached to the bar 36 by a chain 41.

With the parts arranged in this manner the lack may be placed on a floor joist, as indicated by the numeral 44, and the handle I! pressed downwardly toforce the points-orteeth 4 2' and 43- into engagement with the sides of the joist. The groove of the forcin bar I may then be placed over the tongue of a piece of flooring and; the hand lever I8 drawn forward to force the flooring into position. As the hand lever movesforwardthe projection 38 drops into a tooth 39, thereby. locking the-parts in position until 'theflo'oring is nailed. After the flooring is secured in. place, the jack is released by raising the hand lever I! which in turn drawsthe bar 36 upward by the chain 41 thereby releasing the, hand lever, and clamping elements; 7

The hand lever 'l 8 may be readily removed from the socket [9 for convenientpacking ina tool box or the'lik'e by removing the thumb screw 20.

It will be understoodthat modificationsmay. be madeinthe designand arrangement of the parts without departing from the spirit of theinvention.

What is claimed is 1. A toolfor tightening tongue and groove floor ing comprising a base, cam'actuated gripping jaws pivotally mounted on, the base: for; item porarily clamping the tool to a floor joist a hub haying beveled end surfaces journaled in the, jaws andhavingan extended handle, said beveled surfacesof the hubcoactingwith corresponding inner surf-aces of the-jaws whereby upon rotation of; the hub thejaws'areaotuated to gripping rela wi h h floorv i i t. a orcing a a r ed by thej forward; end of the tool, and slidably:

mounted on the said base,;. ahand lever pivotally, mounted on the tool, a brace connecting the hand leve o e r inebar aid basev n pac. d;.

ee h, in he u per surface-an lat hcarned. by thehand lever andpositioned to engage the e rg n the upaen ur ce f; e base oftheo l to lock the forcingbar in'operativeposition; until, the fiooring islnailed.

2, A tool for tightening tongue and groove flooring, comprisingj a basehaying a plurality of; teeth in I the upper: surface and I spaced from; one

end; thereof, cam ,actuated gripping jaws pivotally mounted on the. sides, f the base and extended upwardly and downwardly from the base,, a hub having cam surfacesonthe endsand an extended handle pivotally. mounted in the jawswhereby uponrotation thereof the upper ends of thejaws;

are spread apart-and the lower ends thereof are forced togetherforclamping; the base to afioor; joist, a forcing, bar carried by, the, forward end of the/base and slidably mounted thereon,

a, hand lever pivotallvmounted on the;base,;a Ev brace conne'ctingthe. hand-leven-to the forcing; bar, and a latch carried by; thehand lever and having aprojection:thereon'fpositioned to engage the teeth, infthe upper surface of the base to lock the forcing, bar in operative position while,

the flooring is nailed.

3, A, toolfor tightening tongue and grooved flooring comprising'a, base having teethin the upper surface and spaced from one endthereof,

sideplates pivotallymounted1on the base, and ex-.

tending upwardly and downwardly therefrom, saidside plates having lugs with sloping surfaces on the inner sides thereof, a cam with sloping ends pivotally mounted in the side plates with the ends positioned to engage the lugs thereof, means resiliently urging the side plates against the ends of the cam, said cam having a handle extending therefrom by which it may be rotated to force the lower ends of the side plates into clamping engagement with a floor joist upon which the tool, is positioned; a forcing bar: carried by the forward end of the base and slidablymounted therein, a hand lever pivotally mounted on the base, a brace connecting the hand lever to the forcing bar, and a latch carried by the hand lever and having a projection positioned to engage the teeththe upper surface of base to lock the forcingbar inoperative position while flooring is nailed.

4.- .A tool for tightening tongue and groove flooring, comprising a base having teeth in the HHR PJ surface alldi spaced; from one; end thereof, side plates pivotally mounted on. the base; and extending upwardly and downwardly therefrom; said side plates ,haViIlg;1ugW -;th sloping surfaces; on the, inner sides; thereof,, a, cam; with sloping, endsv pivotally mounted; in, the side plates: with the ends positionedto; engage; the lugs thereof; means resiliently r in he: side. plat s a ainst the, ends of 7 the cam, said camhaving: a;handle extending therefrom; by;-: W1iiQh;it may be rotated; topforce-the lower endfizofthe side plates; into; clamping engagement with a floor joist,up on: whi h et qlis positi ned; aufprcing; bamarried by, the forward end of,. thee basez ind slidably: ounted ther on ahand levermivotally mounted; on thebase, a brace, connecting the; hand lever; to the, forcin ba -r, a, latch comprising: a barihavr' ing, a projection on, the;,end; thereofv pivotally; mounted on the hand levenandgextendedmhereby: the; projection; engages, the; teeth, in, the; upper; surface of the; base, anda flexible; element: con-- necting the handle of the; cam; to the: said: bar; piv y, ru n e l n thehandiever; and havin the p je t o th r on or, releasi g; the, latch: asthecam is released,

5. A tool, for; tightening v tongue, and; groove; flooring, comprising a base. side plates extend+=- ing upwardlyand downwardlyirom thebaseand pivotally mountedthereonsaid side platesflhav ing; lugs, on 1 the, inner; surfaces; thereof, a: cam; pivotally; mountedin,theside;platesihavingslops- Surfaceg d pt d; to n a e he; ugs; on theg inner surfaces of the side plates, said camzhaving; a, handle extending, therefromfer actuating; the cam ,to spread theiupperends; of the; side plates:- for forcing theslower ends ;of,-the;;si de-plateszinto; clamping engagement with a floor -joist on,which the: jack is positioned,- a; spring; connecting the upper ends of the side plates; holding the lugs;v thereof in engagement with-the ends of, thelcam;

a hand; lever, pivotally mounted v-pon the? base, a;

forcing bar positioned: at. the: forward end of the base, means connecting tl'lehand';leyer;to ,the;

forcing bar, and; a--,latch;,for locking the hand; lever in operative positions.

6. A tool, for, tightening, tongne and; groove flooring comprising a ,base,, side plates extending, upwardly, anddownwardly, from thebaseand pivotal y mou t d the n aidside "plates havi lugs ,on the ,inner surfacesithereojf, a,cam;pivote a handle extending therefromfor-actuating the cam to spreadthe ,upper ends; of} the. side ,plates thereby forcing thelower ends of the side plates into clamping engagement with a floor joist on which the tool is positioned, a spring connecting the upper ends of the side plates holding the lugs thereof in engagement with the ends of the cam, a hand lever pivotally mounted on the base, a forcing bar positioned at the forward end of the base, means connecting the hand lever to the forcing bar, a latch for locking the hand lever in operative position and means releasing the latch as the cam is released.

7. A tool for tightening tongue and groove flooring comprising a base having teeth in the upper surface and spaced from one end thereof, side plates pivotally mounted on the base, a cam pivotally mounted between the side plates and having a handle extending therefrom, said cam adapted to spread the upper ends of the side plates, thereby forcing lower ends thereof into engagement with a joist upon which the jack is positioned, means urging the upper ends of the side plates against the cam, a hand lever pivotally mounted on the base, a flooring forcing element connected to the hand lever and adapted to be operated thereby, a latching element carried by the hand lever and having a projection to engage the teeth of the base for locking the hand lever in the position of holding the flooring until the flooring is secured in position, and means connecting the latching element to the cam whereby the latching element is released as the cam is released.

MARVIN WIGGINS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 492,010 Greeley Feb. 21, 1893 764,128 Jefiords et al July 5, 1904