US 1897743 A
Description (OCR text may contain errors)
F. W. WARNER FIRE: HOSE CLAMP Feb. 14, 1933.
Filed Sept. 4, 1931 Patented Feb. 14, 1933 umane; sra referente" 'FFi'e'E- Fmnnosn CLAMP Appnc'ano'nvied september e, 1931'. serial No. 561,294.
This inventionnellates to fa device vfor exico-act with 'a 'lower'javv' niernbeif'Z thighw ertinga.clampingorcontracting,action-upon the operation oan'V operating levjer'l". p any desired-object'such asifoi.clampingand- The uppe'rj jaw'mernoer ll' cur'v'es dfvviilfcontractinguheses or:'asto--sto`p the lio'iv Wardl'y `atits'"rearward ext`re`rrity,'as"showif Y' 5 ytherethrough and is inore'- particularlyfdeatlt, and terniinates'in laterally' extend signed ifoixuse by iiieidepartinentsfor shi ting footpl whichfrestsnpon th'e'groiiid 1olf ting` oithe'lov inire-ho'se-lines 'atfanyde-L any 'otherrsuitableffsupporting'surface/.f` siredpointffalongthe line. i upwardly extending'rib; 16 is formednpoi" The.principal:oloject` of vthe'invention-is Athe upper'jaW 'i'nemherl'l tolstreii'gtl'ienf'itlati --to construct a device of thischaracter Which Athe point of greatest bending strain Aanfdto60 canhe Voperated by one :nianandwvhich- Willi `prow/idea. support for the` leveipivot i7; .i exert .a tremendous clainping` or closing-pres'- Theoperating lever 13 is bifurcated 'adja "Q sure so that when employed-'as la hoseclamp `cent the' pivot 17 so `vthat it passesnieah p it willhavesuilicient.powerto close Va high side ottherib'l. "The urcatinsxte'nd'f pressure lire .hose -line.- at a lateral angle to form twoshrt'leves' I8.f"})5 Another `object ofthe invention is yto so--This constinct'ion""constitutesv what 'may'be construct thedevice that it Willf automati` termed a bell 'cranklever:r l Agconnlctingi eally;lock itself intthe:closedfposition With-119 is connected to each 'ofthe Shortlev'rs" out thef use ofglinks,` latehes,. locks, etc: 18 hy means 'cfa' suitablejhingebolt 20.' 'The A further objectief theinventio'nf is `teilinks extend vdoWnWafrdly jonv each sidefifthel'o eliminate Iall.@complicated` latches, f-hooks,'i jaw inenihersll and l2 and"aresecureidftof catches, etc., so that it can be easilyand' thelowerjaw member l2 'by meansffa' s'ec" quickly operatedin the'darkiorin a smoke ond-hinge. bolt 2l.'v l filled; roomy The loWer'jaW`1i1einber l2-is, turnedfiipf A still further .object is to so.constructltheIiwa'rdly adjacentits rearward' extremity as '.75 device that all dangeraof pinching, cutting, shown at V22 and is extended' through a' slot'f and breaking ofthezhose AWill he ,elimina'led.'Y formed-in 'the uperjawmenberljl; "It 'is Other objects and advantages residedn the -i-hinged` in place in the Imember'll byiheafns Y detail construction of the invention, which cfa thirdhinge'bolt 23.l "A strenggftheniri y;
3 is designedfor si1nplicity,1 economy, 'andfe-Jrib Qlprojects downwardlyffroih "thelvvelifeo iciency. These will becoinenrnore apparent ijaw member v'l2 adjacent the vpositionof"the, f fronLthefol-lowing; description. hinge pin: 2l so 'to strengthen'A it at, 'the Init-he @following-a detailed@description of point of greatest bendingnioment. *The fori the invention referencefis hady to the accom- Vward Vextremity of the elower javvi ember'2 u; panying drawingwhich forinsa part hereof. "is turned downwardly' andV terminates in a" S5 Like-nnmera-lsrefer'to like parts'in allfvie'vvs Second laterally extending'ffdtg A Y of the dra-Wingandsthroughoutlthe descrip- I In use, the' devi-Ceis- Slpped'vef th'h'ose tloor the hose is placed in it so thatthe latter' o liti-1e Clrawlllgi -f'Will' occupy the* brokenY l'inepositioii lOiof 9'033? lg'fl 1S. a 51de elemtlqn.lllustmtmg the 'Fig' l. It Will be noted that a. rpunded prolm'vntlgnn thopel. plosltnf'lu t t. jection 26 extends forvvardlylfrom each ,A 26 i Fig. 3 is aplan view-of the'opened de the amount of mseltf'lon of @he Eloge' Thal 'a 45 vice. handle 13 isvswung in @lle dlrecnon of the 95 Fie'. 4 is av front elevationlzof the closed www A7 Fig l This Causes theihegl of wie? the handleto hear downwardly, .through-c` ln the drawing theppositi-onof a typical the PIVOt 17, 011 hGUPpe'rJaW-a'nd Causesithef h ose is indicated at l0. The invention corna short levers 18 to act'upwardlythron'gh the,h
prises an upper jaw member 11 arranged to links 19 on the lOWer jaW. v As the handlefOOw It will be noted that when in the closed.
position the hinge pin 2O passes slightly rearward of the pivot 17 or, in other words, beyond the dead center of action so that the natural tendency of the hose to open or expand will act only to force the handle 13 further downwardly. This action automatically locks the device in the closed position without the use of the usual latches,
. locks, links, etc. To release the device it is only necessary for the operator to raise extending tongue 28 on the.
the handle 13 until the hinge bolt 2O passes the dead center position when the natural expansion of the hose will automatically l open the device.
If desired the handle 13 may be knurled as shown at 27, to provide a more secure hand grip. lVhen used as a hose clamp, itis preferred to form a longitudinally upper jaw to `coact with a longitudinal groove 29 in the lower jaw in order to provide a more efficient seal in the hose.
lVhile the invention has been described as particularly applied to a device for contracting a hose so as to stop the flow there through, it can be readily understood that the contracting principle of this invention would find many other uses. For instance, the jaws could be provided with suitable dies for pressing, bending, or forming articles. They .could be provided with any of the usual cutting blades for cutting metallic articles. In fact the principle embodied in the leverage system between the two jaws would be valuable wherever it was desired to'k exert a great contracting action. It is well within the skill of any ordinary mechanic to suitably form the active extremities of the jaws to accomplish any desired work. It is desired to be understood that all such uses are contemplated within the scope of this invention.
While a specific form of the improvement has been described and illustrated herein, it is desired to be understood that the same may be varied, within the scope of the appended claims, without departing from the spirit of the invention.
Having thus described the invention, what is claimed and desired secured by Letters Patent is 1. A' device for performing a contracting action comprising: a longitudinally extend ing upper jaw member; means for supporting the rearward extremity of said upper jaw member; a lower jaw member; means for supporting the forward extremity of said lower jaw member; hinge means connecting the rearward extremity of said lower jaw member to said upper jaw member intermediate the extremities of the latter; an operating lever pivoted on said upper jaw member; a short lever projecting from said operating lever and a link connecting the extremity of said short lever with said lower jaw member so that movement of the said operating lever will cause the forward extremities of bot-h said jaw members to approach each other; a forwardly projecting boss formed on said connecting link so as to be positioned intermediate the planes of said jaws when in the open position and outside of the planes of said jaws when in the closed position.
2. A hose clamp comprising: an upper jaw member; a downwardly disposed rcarward extremity on the upper jaw member arranged to support the latter; a lower jaw member; an upwardly disposed rearward extremity on said lower jaw member, said latter extremity being pivoted to said upper jaw member intermediate the extremities of the latter, an operating lever pivoted on sair upper jaw member; a short lever extending forwardly from the pivoted end of said operating lever, and a connecting link connecting the extremity of said short lever to said lower jaw member so that when the lever is swung rearwardly and downwardly, said jaws will be brought to a parallel closed position.
3. A hose clamp comprising an elongated upper jaw member, a shorter lower jaw member disposed in the same vertical plane with the upper jaw member, the rear end of the lower jaw member being disposed upwardly and hingedly connected to the rear end portion .of the upper jaw member, an upwardly extending rib formed on the top of the forward end portion of the upper jaw member, a bifurcated bell crank lever pivotally connected Vto said rib, a pair of links disposed on opposite sides of said jaw members, the lower ends of the links being pivotally'connected to the lower jaw member, the upper ends of the links being pivotally connected to one end of the bell crank lever and an operating lever extending from the other end of the bell crank lever for effecting a closing and opening action of the jaw members, the pivotal connection between the upper ends of the links and the bell crank lever being beyond dead center when thejaws are ina closed position, said jaw members being disposed in substantially parallel relation when closed.
In testimony whereof, I affix my signature.
FREDERICK IV. VARNER.