US1261136A - Sharpening-machine. - Google Patents

Description

A. KRAUTH.`

SHARPENING MACHINE.

APPLICATION FILED sEPr.1o. 1915.

l ,26 l l 3 6 Patented Apr. 2, 1918.

2 SHEETS-SHEET I A` KRAUTH.

SHAHPEMNG MACHINE.

AVPULAIION HLED SEPT. l0. i915.

LQGLl 36. mented Apr. 191s,

2 SHEETS--SHEET 2.

wmeooaa ALBERT Urn, or HAMILTON, oHIo.

SHABPENING-MAGHDTE To all/whom t may concern:

Be it knownV that I, ALBERT KRAUTH, a citizenv of the United States,and residing at Hamilton, in the county of Butler andState of Ohio, have invented a new and useful Improvement in Sharpening- Machines, of

which the following specification is a' full operated through the transmission devices for rotating the cutter.

Other features and advantages will be i more Vfiillysetfthin'thedescription of the accompanying drawings, forming a part hereof, and disclosing a preferred embodiment of the invention, and in such drawings, like characters of reference denote corresponding parts throughout the several views, of which:

Figure 1 is a top plan view of the complete slicingmachine. 4

Fig. 2 is a longitudinal vertical sect1on.

Fig. 3 is a front rear elevation.

Fig. 4 is a det-ail section on line 4-4,

Fig. 1.

Fig. 5 is a detail elevation of the table.

In the machine. illustrated in the drawings, the material te be sliced is manually fed or slid over stationary table sections relatively disposed at different elevations to a degree proportionate. to the thickness of sliceto be delivered by the machine. A ro tative knife intervenes the `table sections to intercept and cut the material bulk asit is fed or slid from one 'table section 'to and upon the second table section, the cutting edge of the knife being substantially flush with the upper surface of the'second table section during its rotative travel throughA the cutting zone. Upon being returned to the first table section, the material bulk descends by gravity to a successive .slice cutting elevation, the first table section being vertically adjustable to determine the slice thickness.

The first or front table section is provided with a surface' plate 32 of glass or similar material adjustably and detachably Specification of Letters Patent.

secured thereto by an improved form of retaining means, and an improved form of knife sharpening attachment is provided for grinding or sharpening the knife when necessary.

rlhe frame of the machine consists of two parallel side rails l, having `circular rear ends 2, which form a housing'for the circular knife 3. These rails are integrally joined by cross-webs 4;, 5,6, and are provided With suitable supporting legs 7.

The circular knife 3 is a steel casting of dish-form in cross section, offsetting the margin knife tang from its central web to provide a table receiving recess, enabling the table surface to be alined flush with the plane upper tank side 8. The knife is secured to a hub disk 9, which is supported upon a boss projecting from the cross-Web 5, and secured to a vertical shaft 10 journaled in said web.

Manual means, as a hand wheel, is provided for revolving the knife, said hand wheel being secured to the outer end of a horizontal' shaft 11 journaled in the cross web 5. The inner end of the shaft 11 has a beveled gear 12, fixed thereon in mesh with a beveled pinion 13, fixed to the knife shaft 10, providing a direct drive between the hand wheel and knife. i

A curved guide plate 14. is secured to the cross-web 4, at 15, and extends upwardly to a point closely adjacent the cutting edge of the knife to guide or direct the slice downwardly and away from the drive gears.

The table section 16 is' represented as a dish formation of a circular outline to provide offset marginal sides 17, defining longitudinal side walls 18 for confining the sl1cing area laterally. It has a portion thereof cut away, visible in Fig. 1, for clearancefor the knife and for continuity of travel of the material bulk from one table section to the second, and also, for the purpose of seating the forward table edge within the knife recess and approximately flush with the upper surface of the knife tang. The table section 16 is secured by thumb screws 19, to

lugs 20, which project upwardly from the .Patented Apr. 2, 1913.. Application led September 10, 1915. Serial 110,451,956.

2l of said table section is secured upon a bracket plate 22, fixed to a vertical supporting rod 23, said rod being slidably supported within laterally extended spaced portions of the cross-web G. To guide the base plate 21 in its vertical movements' of adjustment and confine the table against rotation, lf provide screws 24 screw threaded into the rails 1, and engaging the side walls 25 of the base plate. rl`he rod and its elements are adjusted vertically by a cam lever 26, having a tubular or sleeve portion 27 straddlcd by the cross-web 6, to confine the same against longitudinal movement with the rod, although rotative thereon. The sleeve is provided with an angular slot 28, into which a radially projected pin 29, fixed into the rod, engages and slides, the angle of the walls of the slot determining the degree of adjustment of the table in an oscillating movement ofv 'the lever. The lever 26 has an indicator point 30 projected therefrom, which moves over an indicator dial 31, p rojecting from the web G. Thus by swinging the lever either to the right or left, the front table section can be elevated or lowered and can be .delicately adjusted, cordinate to the cutting-plane of the knife to determine the thickness of the slice and maintain it in its adjusted position. The glass surface plate 3:2 is supportedon the base plate 21 and is confined against lateral displacement by the side walls thereof. A pair of retaining plates 33 engage 'the longitudinal' upper edges of the surface plate t0 prevent vertical movement thereof, said .retaining plates ,extending beyond the front edge of the surface plate, at which point they are provided with inturned abutment luos 34. The surface plate 32 has a circular ,beveled rear edge which is engaged by an -upturned lip 35 of a clamp slide 86, which is slidably mounted in a recess in the base plate 21 and provided with screw threaded translator means 36a for translating the clamp slide to clamp the surface plate against the abutment lugs 34. rlhe retaining plates 33 are adj ustably clamped to the side walls 25 of the base plate Q1 by bolts 37 secured in said plates and projecting through elongated slots 38 in the side walls of the base plate. This permits a longitudinal adjustment of the surface plate relative to the knife.

Means are combined with the machine for grinding or sharpening the knife at any time meeting the pleasure of the operator, or if sharpening is required, without removing any of the parts and operated by the hand Wheel rotating the knife. The sharpening attachment is permanently located on the machine and is readily thrown into and out of commission. It is supported at the rear medial portion of the machine below the knife and dependingly from the crossneen-13e web 4 and horizontal j drive shaft 11. .4. bracket arm 40 loosely journaled on the shaft 11 projects downwardly and rearwardly and has looselyl journaled in its lower end a rock shaft 41, to which is secured an ll-bracket arm 42. Rotatively journaled in the bracket arm 42 is a shaft 43, on one end of which is detachably'secured a grinding wheel 44, the other end having fixed thereto a gear pinion 45, adapted to be thrown into mesh with a gear wheel 46 secured to the inner face of the4 hand wheel 47. 'The bracket arm 42 has secured thereto a handle 48 which extends inwardly as at 49, and is provided with a laterally 'projecting pin 50, normally engaged into a retaining notch 51, formed in a guide plate 52 secured to and projecting downwardly from the cross-web 4. 'lhe notch 51 merges into a guide slot 53, which is concentric with the shaft 11 and serves to hold the pinion 45 in mesh with gear 46 during the vertical travel of the grinding attachment. A coil spring 54 surrounds the rock shaft 41, one end being secured to the shaft, and the other end secured to 'the bracket 42. This spring exerts its tension to hold the pin 50 in the retaining notch 51. rlhe rock shaft 41 extends beyond the bearings of the bracket arm, see lfig. 3, and interposed between it and the frame 2 is a spring 55 which exerts its tension to elevate the grinding attachment to bring the grinding wheel 44 into engagement with the knife. An adjustment screw 56 is mounted in the cross bar of the bracket arm 40, theV upper end engaging the cross-web 4 when the grinding attachment is in commission, to determine the degree of grinding contact between the grinding wheel 44 and knife.

1. ln a machine of the class described, a rotative grinding wheel, toggle lever means as a movable bearing support for the grinding wheel, yieldinglyurged to move said wheel toward a cutter, and one yieldingly urged upon the other in a direction laterally to the motion toward the cutter, for maintaining said wheel in an inoperative position, a guide for directing the motion of Said lever means, a main driving gear, and a gear fixed t0 the axis of said grinding wheel movable therewith, to engage with said first-named gear for rotating the grinding wheel. r

2. ln a machine of the class described, a

rotative grinding wheel, toggle lever means' 1,261,136 v et for determining the limit of motion of said 'my name, as attested the tWo subscriblever means towarf'd Jglhe culiter, a divfmg ingWitnesses.'l gear, and a er -Xe to t eaXis'o said.- 4 t grindng-xvhr movable therewith, .to sny Y ALBERT-KRAUTH' V5 ga-gewth the 'sad-rst-named gear and n Witnesses: l V

mesh ,toward the cutter. I f F. G. DEISBOH,

yIn Witness whereof, I hereunto subscribe WM. KRAU'LH.v

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