US2540816A - Griddle cleaning device - Google Patents

Description

Feb. 6, 1951 J. FARROW GRIDDLE CLEANING DEVICE Filed June 7, 1949 2 Sheets-Sheet l 16 ff W JNVENTOR FRaow JOSEPH BY Feb. 6, 1951 J. FARROW GRIDDLE CLEANING DEVICE 2 Sheets-Sheet 2 Filed June 7, 1949 INVENTOR. JOSEPH FRROW BY MWA/2 Patented Feb. 6, 1951 UNITED STATES PATENT OFFICE 7 Claims.

This invention relates to new and useful im-` provements in griddle cleaning and polishing handtools, and more particularly the aim is to provide a novel and valuable such tool for cleaning and abrasively polishing the at upper surface of a griddle or heating plate such as used in many types of restaurants and eating places for the making of griddle cakes, the frying of eggs, bacon, etc.

According to the invention, a device is provided, which, having at its bottom an elongate plate-like backing structure or platen and at its top a comfortably grippable plate-like handle elongated in the direction of elongation of said platen, incorporates between the platen and handle a preferably cylindrically tubular magazine for storing therein and in coiled condition a supply length of emery cloth or the like, this last-named element in a roll of a width substantially equal to the length of the platen and of a length several or even many times the platen width; in combination with an egress opening for 'the emery cloth or the like, said opening preferably a slot extending longitudinally of the magazine at a side thereof, and also with a unique type of clamping means for a subdivision of the length of said cloth after said subdivision, having been drawn through said opening, is Wrapped laterally around the platen and then upwardly directed at its free end at the exterior of the magazine at its side opposite to the location of said opening, said clamping means for holding taut the stretch of said cloth underlying the bottom of the platen and for anchoring said strip to absolute tautness, with the abrasive side of the cloth lowermost, and in further combination with means readily manually operable adjacent to the handle for loosening said clamping means and restoring the latter to its normal clamping function.

Also, preferably, said magazine is closable at both ends by disk-like caps forming part of a readily removable and remountable minor assemu bly; which assembly may include a rod permanently secured at one end to one of said caps and tubulated at its opposite end and there internally threaded to provide part of a means, including a screw having a thread matching said internal thread, for coupling the cap other than the one just-named to the tubular end of said rod, thereby securely temporarily to remount both end caps, and with said rod, incidentally forming a centering mandrel relative to the aforesaid coiled reserve portion of the abrasive cloth `or the like.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a perspective View of the hand-tool constructed in accordance with the present invention.

Fig. 2 is a perspective View similar to Fig. 1, but with the top handle broken away.

Fig. 3 is a side elevational View of Fig. 1.

Fig. 4 is a central longitudinal vertical sectional view of the hand-tool.

Fig. 5 is an enlarged transverse vertical sectional view taken on the line 5-5 of Fig. 4.

Fig. 6 is a View similar to Fig. 5, but illustrating a different position of the parts.

Fig. 7 is an exploded view of a portion of the clamp means.

The cleaning and polishing hand-tool, according to the present invention, includes a platen, preferably of a lightweight metal, as aluminum or an aluminum alloy, and of shallow U crosssection as shown in Figs. 5 and 6, is designated It. The plate-like elongate structure comprising the handle, this marked II, may Well be a die or other casting, in the former case practicably of a metal as ordinarily used in die-cutting. The magazine I2, for a roll of emery cloth I4 of the dimensional characteristics already stated, may be made of any material, as brass or other metal; and it will be noted that the same is merely a squarely cut-off length of what may well be a standard extruded tubing. Extended from end to end of the magazine I2 along one side, there is a slot I5, constituting the already mentioned egress opening for a subdivision of the emery cloth I4, as indicated in Figs. l and 2.

The clamping means for functioning as already explained incorporates a bottom-gapped clamping barrel I6 which overlies and straddles the major part of the circumference of the magazine I2, with the concave side of the barrel, of course, facing the convexity of the magazine. A pair of lugs I'I are secured to the bottom face of the handle II by screws I8, the bottom ends of the lugs are extended in opposite directions and seu cured to the top of the magazine I2 by screws I9. The platen I along its central longitudinally extending thinner portion is permanently secured tothe bottom of the magazine I2 in any suitable Way, as by the three screws 20 shown, thereby halves Ilia and i610.

to cradle the lower rotundity of the magazine I2 in the space provided along said central portion of the upper side of the platen.

The clamping barrel I5 is formed of opposed The adjacent top edges of the barrel halves Ia and Itb are pivotally curled about a rod iii which extends between the upstanding portions of the lugs I1, as shown in Fig. 4, the ends of the rod so are reduced and received in complementary holes formed in the upstand-v ing portions of the lugs I'I. A coil vspring 4I is coaxially wound on the rod lo intermediate of itsI ends. The ends of the coil spring il bear against the undersides of the barrel halves It@u and lh,

as clearly shown in Figs. 5 and 6, forv urging the` halves I5JL and I'b into the open or inoperative position of the halves IISa and [5P the4 length of emery cloth Iii is free to be drawn from theslot I5 of the magazine I2 to beadjusted with relation to the magazine I2 and the platen Iii.

Manually operable clamp means is provided for rurging the barrel halves Ita and IGP, against the action of th-e spring @I into their closed or operative position shown in Fig. 5 and for holding the halves in that position. That clamp means comprises an arch-bar 2|, which may be made of a metal or other material, and which should either be inflexible o-r substantially so. The bar 2l is elongate and longitudinally curved to a less, and preferably a considerably less, radius of curvature than the clamping barrel I5, when closed, and'even, also desirably, less than that of the tubing of which the magazine I2 is made.

Other elements of said clamping means are an actuating screw 22 arranged so as when rotated in one 'direction to result in the imparting to the arch-bar 2! at the center of its lengthof a downthrust against the upper part of the clamping barrel I5. The screw 22 is threadedly engaged through the handle II and is formed at its bottom end with a reduced portion 23 which is. rotatively extended through a complementary hole, inthe bar 2i. The face end of the portion 23 is'milled over as shown in Figs. 4 to 6 for retain-l ing*` the bar 2l rotatively in position thereon. The slightly reduced head 2d of the screw 22 .is of square cross-section ior fitting keyingly-ina square hole through the center of a knurled manually turnable disk 25; which latter Ais vthe 7 aforesaid actuator of the clamping means. The square head 2li ci the screw 22 is' axially recessed and tapped, and a screw 26 having a` thread matching the thread in said recess 21 is provided for securely coupling the disk 25 to the screw 22.

rlIwo generally like stepped end caps 28. and 29 are provided for readily detachable securem'ent to Y close both ends of the, emery cloth housing cham'- ber provided at the interior of the magazine I2,

. A round rod 35 is at one end permanently secured to the center of the end cap 28,A so vas to extend therefrom, in any suitable way, asv by having a reduced end portion for extension through a central aperture in the cap 28, and then for being headed over, all as indicated at 3l inVV Fig. ,-1.

Y There is a tubulaton 32 in the opposite endofv said rod, which tubulation is internally threaded. The other end cap 29 has a central aperturefor. the passage therethrough of an attaching. screw 33 having a thread matching the threadin the tubulation 32 of the rod Sil. Thus, merely by removing the screw 33, the chamber in themagaf zine I2 may be op-ened at both ends, and with the caps, 2 3, and 2a arranged as shown in the-draw ings, all that is needed fully to close the magazine, except for the slot I5, is to apply and tighten up the screw 33.

With the end caps removed, a suitably elongated roll of the emery cloth I4 or the like may be stored in the magazine I2 and is placed on the rod 32 which facilitates rotation of the roll of emery cloth, as clearly shown in Fig. l, and so that an end portion of the flexible abrasive element I4 traverses the slot I5 and is extended to beyond the adjacent lower end edge of the clamping barrel half 63; with, it being understood, the disk 25 rotated Suiiiciently to raise the arch-bar 2l, as shown in Fig. 6, and so to allow the already mentioned resilient bias of the clamping barrel I6 to distend the same, despite the presence of the arch-bar 2|, and thereby open up a passageway for the being withdrawn end portion of the abrasive roll It below the slot I5 and beyond the lower endvof the adjacent barrel half Ita.

This having been done, said iiexible abrasive element It is withdrawn further for extension. around the platen Iii as shown, and for entry of the free outerr end of said element IA up into the space between the exterior of the magazine I2 and the other barrel half I5?, as indicatedk inV dot and dash lines at Illa in Fig. 6. Now, without excessive slack being allowed in any part ofthe roll I4 exterior to the clamping barrel IE, all that is required in order to holdtaut the stretch of said element III acrossy the` bottom of the platen i0 and over the entire length of the latter, andy to anchor said element I4 between the clamping barrel I5 and the magazine I2, in a way to hold saidvtautness, isto turn the disk` 25 in the direc,- tionvre'quired to restore the parts to the condition showny in Fig. 5.

It is to be noted that, the iiexible abrasive ele: ment of the roll it, extends across the entire width of the platen IB and also substantially along its entire length; and that, when thefpor-` tion of said element ilirunderlying the bottom of' the platen has been so long used that its abrasiveeilcacy has considerably deteriorated, it is a simple matter, by rst turning the disk 25 in one direction, toopenthe opposed halves` ofthe tenerse-, 1 and leb thus snowing die. de',T teriorated element to be torn fromy the roll I lIv and then withdrawingl by handr a suliicient por. tion of the abrasive element from the roll I4- to cover the bottom of the platen.v Bly turning the disk ze in trie opposite direction, die Opposed- Ahalves of the barrel will return to their original' position. One result is that the platen bottom is always covered with a fully eiective abrasivel covering another result is thatthere is;r no unnecessary wastageV of the flexible abrasiveeleu ment; another result is that recovering the bot-` tom ofthe platen is a simple and easy, matter;V and another result is that a verylarge. reserve supply of the element Id may be stored in the` magazine I2- The Vcontrol disk 25 of, the clampA means isofa diameter lessthan the width oi i the handle and 0f a" mistress.. les@ than. ihe-fihiknessfof the material used to form the. handle.' The centerof the handle il isV recessed at 36 tothe thickness ofY the disk 2,55-,l so that the diski will be received therein with its top falceV ush. witlr ine top ofthe handle; il, as, snqwninriigs. lV and 5, when thev clamp barrelT I5 is in itsop-.f eavtivey position. The sides of the haifidlef'Illv are formed with cutouts 35 which. exp9sedia-fmetrically opposite V'sides o'fthefknurledf disk providing a finger grip by which the disk can -be conveniently turned in one .direction or the other for similarly turning the screw 22.

While I have illustrated and described the preferred embodiment of my invention, it `is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modications coming within the scope of the invention as dened in, the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A cleaning and polishing device for the purpose stated, comprising a bottom structure shaped to provide an elongate plate-like platen, a top structure shaped to provide an elongate plate-like handle the direction of elongation of which is in the same direction as that of said platen, a tubular magazine for a flexible roll carrying an abrasive surface, said magazine being elongate with its direction of elongation in the same direction as that of the handle and platen, said roll being ofa width substantially equal to the length of the platen and of a length equal at least several times to the width of the platen and said magazine at a side thereof having a straight slot as long as the width of said roll, said handle being secured to and spaced above the top of said magazine and said platen being secured to the bottom of said magazine with its general plane substantially parallel to the general plane of the handle, and a clamping means for holding extended across the bottom of the platen a subdivision of the length of said roll, said clamping means including a manual actuator for loosening and tightening the clamping means and carried by the handle, said clamping means including a bottom-gapped clamping barrel of a length approximating that of said magazine, and means for thrusting L against said barrel near its top for elastically reducing its said radius, thereby to constitute said barrel a double-acting clamping instrumentality at its bottom gap relative to parallel linearly extended portions of said roll along lines angularly displaced one from another at the exterior of the magazine, said clamping means further including an arch-bar overlying the clamping barrel and extending laterallyof the length of the magazine and having its concave side downwardly directed, said bar having a substantially circular direction of longitudinal extension, the radius of curvature thereof at its said side being less than that of said barrel, and a threadedly mounted operative interponent between said manual actuator and said arch-bar.

2. A cleaning and polishing device for the pur-- pose stated, comprising a bottom structure shaped to provide an elongate plate-like platen, a top structure shaped to provide an elongate plate-like handle the direction of elongation of which is in the same direction as that of said platen, a tubular magazine for a flexible roll carrying an abrasive surface, said magazine being elongate with its direction of elongation in the same direction as that of the handle and platen, said roll being of a width substantially equal to the length of the platen and of a length equal at least several times to the Width of the platen and said magazine at a side thereof having a straight slot as long as the'width of said roll, said handle being secured to and spaced above the top of said magazine and said platen being secured to the bottom of said magazine with its general plane substantially parallel to the general plane of the handle, and a clamping means for holding extended across the bottom of the platen a subdivision of the length of said roll, said clamping means including a manual actuator for loosening and tightening the clamping means and carried by the handle, said clamping means including a bottom-gapped clamping barrel of a length approximating that of said magazine, and means for thrusting against said 'barrel near its top for elastically reducing its said` radius, thereby to constitute said barrel a double-- acting clamping instrumentality at its bottom gap relative to parallel linearly extended portions of said roll along lines angularly displaced `one from another at the exterior of the magazine,

said clamping means further including an archbar overlying the clamping barrel and extending: laterally of the length of the magazine and hav-- ing its concave side downwardly directed, said bar having a substantially circular direction of longitudinal extension, the radius curvature thereof at its said side being less than that of said barrel, and a threadedly mounted operative.

interponent between said manual actuator and said arch-bar, said interponent being secured to said manual actuator for rotation thereof, and comprising a screw rotatively connected to said arch-bar,

3. In a cleaning and polishing device for the purpose stated, a tubular magazine for a roll of abrasive material having a ilat bottom platen and -a slot along one side thereof through which the the platen, resilient means normally urging said barrel halves away from the sides of said. magazine, and manually operable means for holding the halves of said clamp barrel in their operative `position clamped against the sides of said magazine.

4. In a cleaning and polishing device for the purpose stated, a tubular magazine for a roll of abrasive material having a flat bottom platen and a slot along one side thereof through which the end of the roll of abrasive material can be projected to be extended across the bottom face of said platen and then upward along the other side of said magazine, spaced lugs extended upward from the top of said magazine, a handle mounted on the top of Said lugs, a clamp barrel of opposed halves pivotally supported on said lugs between said magazine and said handle to be clamped against thelsides of said magazine for securing the projected end of the roll of abrasive in position with a portion thereof extended below the platen, resilient means normally urging said barrel halves away from the sides of said magazine, and manually operable means for holding the halves of said clamp barrel in their operative position clamped against the sides of said magazine, and a rod mounted between said lugs and said opposed halves of said clamping barrel having adjacent edge portions curled about said rod orming the pivotal mounting of the halves of said clamp barrel.

5. In a cleaning and polishing device for the 7 purpose stated, a tubular magazine for a roll' of abrasivematerial having a flat bottom platen and aV slot along one side thereof through which the end of the roll `o f abrasive material can be pro- -jected to be Aextended across the bottom face of vsaid platen and then upward along the other side ci said magazine, spaced lugs extended upward rom the top of said magazine, a handle mountedon the top of said lugs, a clamp barrel of opposed halves pivotally supported on said lugsbetween said magazine and vsaid handle to be clamped against the sides of said magazine for securing the projected end of the roll of abrasive in position with a portion thereof extended below the platen, resilient means normally urging said barrel halves away from the sides of said magazinaand manually operable means for holding the halves of said clamp barrel in their operative `position clamped against the sides of said magazine, and a rod mounted between said lugs and said opposed halves of said clamping .barrel having adjacent edge portions curled about said rod forming the pivotal mounting of the halves of said clamp barrel, said resilient means comprising a spring yon said rod having its ends acting against the bottom faces of Said opposed halves and pivoting them away from.

the sides of 'said magazine.

6.v In a cleaning and polishing device for the vpurpose stated, a tubular magazine for a roll of .abrasive material having a flat bottom platen and a slot along one side thereof through which the end of the roll of abrasive material can be projected to be extended across the bottom face of saidv platen and then upward along theother side of said magazine, spaced lugs extended upward from the top of said magazine, a, handle mounted on the top of said lugs, a clamp barrel of opposed halves pivotally supported `on said lugs ybetween said magazine and said handle to be clamped against the sides of said magazine for securing the projected end of the roll of abrasive in position with a portion thereof extended below kthe platen, resilient means normally urging said ybarrel halves away from the sides of said maga-.- zine, and manually operable means for holding Athe halves of saidclamp barrel in their operative position vclamped against the sides of said magazine, said manually operable means comprising a rigid arch-bar extended across said clamp bar,- rel with its concave side facing downward, said arch-bar having its ends engaging the top faces of the opposed halves of said clamp barrel onopposite sides of said pivot, and means carried by said handle for holding said arch-bar vin positions in which the opposed halves of said clamp barrel are clampedagainst thesidesr-,of said* magazine or Afree to ,be urged away from the sides of said magazine by vsaid resilient mea-ns,

'7. In a, cleaning and polishing device for the purpose stated, a tubular magazine for a roll .of abrasive, material having a flat bottom platen and a slot along 4one side thereof through which the end of the roll of vabrasive material can be vprojected .to b e extended vacross the bottom face of said platennand then upward along the other side of said magazine, spaced lugs extendedk upward from, the .top yof said magazine, a handle mounted on the top of said lugs, a clamp barrel ofopposed halves pivotally supported on said lugs 4Vbetween said magazine .and said handle tor be 4clamped against the sides. of said magazine for `.securing the projected ,end of the roll of abrasive in position. with `a portion thereof extended below thehplaten, resilient means normally urging saidLbarrel. halvesaway from the sides of said magaznaand manually operable means for holding, the halvesof said clampv barrel intheir operativeposition clamped against the sides of said magazine, said manually operablemeans comprising Aa rigid karch-bar extended across said .clamp barrel, with its concave side facing down- -Wldsad arch-bar having its ends Vengaging the top, facesof' the opposed halves of said clamp barrelon opposite sidesof ,said pivot, and means carriedjby said handle ,for holding said arch-bar in positions in whichrtheopposed halves of said Vclamp Vbarrel are clamped against the sides of said magazine orfreelto be lurgedaway from the sides of said magazine by said resilient means, said means Qarrriedj by said .handle vcomprising agscrew .threaded throughsaidlhandle, said screw having Yits hottomend rotativelyconnected to said archbarfintermediate of its ends, and disk on the top end of said screw vby whichsaid screw can be turned to raise, andy lower said arch-bar with relation 4tosaid clamp barrel.

JOSEPH FARROW.

REFERENCES Orrin) Thefffollowing references are of record in the `iileof this patent: Y

UNITED `s rA'rEs PATENTS Number Name Date r'123,888 .(Brernez,` Feb. 20, 1872 842,5519- Peters Jan. 29,1907

1,943,054` McReynoldsk Feb. 13, 1934 2,197,224 Peterson Apr. 16, 1940 ,2,408,815Y ASeward; Oct. 8, 1946 2,459,893 Peterson. Jan. 25, 1949

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