US1708821A - Bread slicer - Google Patents

Description

April 9, 1929.

c. WURTENBERG BREAD SLICER 2 Sheets-Sheet Filed Jan. 26, 1928 l Quo/:Muga

Patented pr. 9, 1929.

UNITED STATES CHARLES WURTENBERG, OF UNION CITY, CONNECTCUT.

BREAD SLICER.

Application filed January 26, 1928.

The invention relates to iinproven'ients in slicing devices and the present disclosure is devoted to one designed primarily for slicing bread, the principal object being to provide novel means whereby a slicing knife is held in a truly horizontal position and is guided vertically to produce accurate cuts in an easy manner.

iiiiother object is to provide a slicer of new and improved foi-in, embodying a base to which knife-guiding means is pivoted for downward folding against said base when not in use, unique provision being` made whereby said guiding means is held in upri ght position for use, whenever desired. l

llith the foregoing in view, the invention resides in the novel subject i'natter hereinafter described and claimed, description being accomplished by reference to the accompanying drawing.

Fig. 1 is an end elevation of slicer constructed in accordance with my invention, 'the knife being in raised position.

Fig. 2 is a view similar to Fig. 1, on a reduced scale showing the knife lowered.

Fig. 3 is a top plan view.

Fig. l is a side elevation with the knife in section.

Fig. 5 is a fragmentary perspective view.

rllhe drawing above briefly described illustrates the preferred forni of construction, and while this construction will be herein specifically explained, it is to be understood that within the scope of the invention as claimed, variations may be made.

denotes a rectangular base provided along one longitudinal edge with an upstanding guide wall G against which to rest a loaf of bread to be sliced. At one end, the base 5 is formed. with a horizontal korf 7 which opens laterally through one of its edges. Contact-ing with this edge of the base is a horizontal metal strip S which is pivoted to said edge on a suitable. transverse lpivot 9, the free end of the strip 8 being formed with a keeper or notch 10 which alines with the korf 7, when the strip 8 is horizontal as in Fig. Ll. A latch 11 is pivoted at 12 in the kerf 7 and when swung into the keeper or notch 10, holds the strip 8 in horizontal position.

Pivoted at 13 to the edge of the base 5 opposite the strip 8, is a similar strip 14;, the pivots 9-13 being alined. The legs of an arched, knife-guiding frame 15, are secured by rivets or the like 16 to the strips 8-14:

Serial N0. 249,740.

and when the latch 11 is in operative position, said frame is held upright. Release of the latch however, permits the strips 8-111 to swing, and the frame may then swing downwardly against the base 5, producing a very compact structure when its use is not necessary.

Frame 15 is preferably formed of two arched metal bars spaced apart to provide a guiding slot 1G for a knife 17, and unique provision, now to be described, provided to insure that the knife shall remain in a truly horizontal position, but may readily move upwardly and downwardly.

Two lugs 1.8-19 are suitably .secured to and rise from the upper corner portions of the frame 15, these lugs being instrumental in connecting two, inclined, crossed levers 20-21 with said frame. The ends of these levers are denoted at 20H-201 and 21a- 21", and as the ends 2Oa and 21eL are the lowerinost throughout probably the greater part of a slicing operation, they will be hereinafter referred to as the lower ends of the levers, permitting a clearer description than would otherwise be possible. The lower end 2OL of lever 2O is pivoted at Q2 to the lug 19, while the lower end 21EL of lever 21 is pivoted at 23 to a short link 24;, the lower end oif the latter being pivoted at 25 to the lug 1S. The two levers 20%21 are pivoted to each other at 2G, lever 2O being provided with a laterally offset portion 27 through which this pivot passes. The numerous pivots 22-23-25-26 are all parallel and hence the levers 20-21 may swing upwardly and downwardly but this swinging is necessarily uniform, due to the arrangement of parts shown and described.

Relatively long links E28-29 are pivotally hung from the upper ends 20M-2li of the levers 20-21 respectively, the pivots 30 which connect said links and levers being parallel with the pivots above described. The lower ends of the links 28-29 are pivoted by removable pins or the like 31, to the end portions of the knife 17. Thus, the knife may be readily reciprocated by hand and as it moves downwardly during the cutting operation, it is maintained in parallel relation with the base 5. By the time it has completed a cut, the lateral portion 27 of lever 20, strikes the crown portion 32 of the frame 15 and limits the descent of said knife, preventing it from cutting the base.

It will be seen from the foregoing that avvslieerlof'very ,novel and advantageous 'l construction-has'been-providedfor successhas been illustrated and specifically described, variations-may be made within the scopeof the invention claimed.

',Iclai'mzs Y #LA slicereomprismg a support, link- Isupportingmeans mounted thereon and embodying'pfront and rear linkpivots and means for insuring uniform vertical movement of said pivots, front and rear links l hung from said pivots, and a knife pivoted tothe lower ends of s aidlinks, said linksupporting means permitting vvertical movementofsaid links 'andknife independently of swinging of said links, said links permitfyting continual ieciprocation of ltlieiknife while making. a cut.

2.v A Slicer .comprising a support, a, Apair 4 of `crossed oppositelyv inclined levers pivoted together, means fulcrumingtlie llower end otonel of saidlevers to saidsupport, means conneetingthe lowerfendof the other lever to the support and permitting movement of this lever end toward and from Vsaid lower end of said one lever, links pivotally hung from the upper ends of said levers, and a knife pivoted to the lower ends of said links.

3. A slieer comprising a support, a pair of crossed oppositely inclined levers pivoted together, means fulcruming the lower end of one of said levers to said support, a link pivoted to tlie lower end of the other lever and to said support, relatively long links pivotally hung from the upper ends of said levers, and a knife pivoted to the lower ends of said long links.

fl.v A slicer comprising a base, an arched knife-guiding fra-me rising from said base, a pair of crossed oppositely inclined levers pivotedftogether and disposed at the crown portion ot said frame, means fulcruming thelower end of one of said levers to said frame, a link pivoted to the lower end of the other -lever and to said frame, relatively long links pivotally hung from the upper

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