US1778875A - Slicing machine - Google Patents

Description

Oct. 21, 1930; c. F. M. VAN BERKEL SLICING MACHINE 2 Sheets-Sheet 1 Filed June 18, 1928 Oct. 21, 1930.

C. F. M. VAN BERKEL SLICING MACHINE Filed June 18 1928 2 Sheets-Sheet 2 I x- I l raur rmn 12 2 .12 1

. sliced is carried on a carriage which can be by hand or automatically,

the carriage can be hand operated'or may remain at rest wh1le the I knife is power-v driven, and can be hand-operated wh1le the Patented Oct. 21, 1930 E if.

oonivnms F. M. vim ERKEL, or" WASSENAAR, ,NETHERIJAJSTDS, Assienon; 'iio iigjs. 1

' SLICING MACHINE oo riPANY, or LA ron'rn, INDIANA,

sud meneonmn Application medium-18,1928, sum 1%. 286,312, and'in Great Britain jun; 21, 1927. r

This invention relates to slicingmachines of the kind in which the substanceto be moved to and fro past a rotary knife,,ineans being provided whereby the substanc e'can be fed step by step towards the knife, either in the working of the machine. v r

Slicing machines of the above kind are generally operated eitherby hand or anelectric motor, but it has been proposed'to make them convertible from hand-operated machines into power-driven machines, and vice versa However, inorder to do this, certain parts have to beuadded, removed or'1nter-- changed, and this entails time and trouble.

-The object of this invention :is to make slicing machines so that they can bereadily operated by hand or by power-Ives desired Without the necessity for removing or changinganyoftheparts.

According to this invention, the slicing machine has, in combination, hand-operable mechanism and power-driven mechanism and also mechanism whereby, without altering or changing anyof the parts, the machine can be operated wholly or partly'by either the hand or the power mechanism, as desired, the arrangement being such that, when the machine is being driven by hand, it is disconnected from the power-driving mechanism.

With a machine constructedinaccordance with the invention, the slicing knife and the substance supporting carriage'can be operated in unison by the hand-operable'mechw.

nism or by the powerdriving mechanism;

knife remains at rest, The constructionmay be such that the carriage canbe operated by by way of example, will now be described.

with reference'to the accompanying drawing, in wh1ch:

Fig. 1 is a-diagrammatic elevation of one form of slicing machine embodying ,my invention; I; v

"rotated clockwise, but so rotatedr i embodying my invention; r Fig. '5 is a plan viewof Figjt; and

Fig. 6 is a View partly in-elevation and r I, I 2 -6 Throughout the several figures, thesame partly-in section; V

Fid. 2 a fragmentary view imWingpa'a g I Fig. 3 is. a fragmenta horizontal g numerals of reference indicate-thefsame or r corresponding parts;

Referring to Figs.'1,"2and 3, theslicing machine therein shown is. of the well-known I l re'cipro'catory carriage type,comprising a ro-' tary kn1fe 1 and a substance supporting oarriage '2, adapted to be reciprocatedalong stationary" guides 3 .(oneonl'y beingi'shown) past thegknife. The. machine is provided' with an electric motor 4randahand-rotatable flywheel 5. The shaftof the motor 4 has a pulley' 6 which. is connected byya belt? with p a pulley 8 on the knife shaft 9. "The flywheel shaft. 10 is connected. with the1carriage2 through the intermediary of beVel -gearwheels 11, 12, a vertical crankshaft 13,221, crank 14', and .a connectingrod 1-5. A-horizontal V counter-shaft 16 has at one end a b'evelgearthrough the transmission of power-from the wheel17meshingwith'the'gearwheel-12and,:; 1 at the other endaTsprocket-wheell8connected, by a chain 19 with a sprocket'wheel12O on the knife shaft 9.

' "A free-wheel device/5 of any suitable con- 5 struction, such for examp'leas that shown in e5 Fig.2, is interposed betweenthe pulley 8 and the knife shaft 9. 'In the device-shown, the I 'pulleyfS is mountedloosely onithe sh'aft*-9 i 7 'and secured to thepulley 8 is a toothed wheel 22, which is disp osed'within the annular rim 20' of a ci'rcularcasing 23, keyed to the shaft 9; The wheel 22 is formed, as shown,;w ith wedge-shaped interdental' 'spaces between f Q teeth21, each containingaball 20. As'will.

be obvious, thejballs24= provide adriving cone, vnection between the pulleyv Sandthe shaft 19 wheel 22 tothe rim 20 whenthe 'pulleyis not when the shaftlis vat10n ofanother form ofslicing machine A manually controllable clutch of any suitable construction, such for example as that shown in Fig. 3, is interposed between the sprocket-wheel 18 and the counter-shaft 16.

The clutch shown comprises a male element 25 and afemalev element 26.1'igid with the sprocketwheel 18. The male element 25 is feathered to, but slidable on, the shaft -16,

whereas the female element 26,is turnable. but

not slidable, relativelv theretotj The element 25 is urged towardstheelement26by a spring] 28, but can be withdrawn at will from .en-I

gagement with the element 26 by retract-in a control rod29,.,;whichlS'; C O 11PlGC l through a bell-crank lever 30,-having a forked arm 31,

with the element 25. 'When the clutchele ments are in inter-engagement, a driving'connection is formed between the knife shaft and the counter-shaft,but, when they are disengaged, this driving connection is 'disestablished. V V V In the operation of themachin'e, when-the motor is rotating, the knife will also rotate.

by turning the flywheel, e clutchhei'ng'in engagement. By withdrawing the' 'clutch, and continuing toturn the flywheehthe carriage will reciprocate, but the knife willf remain at rest.. i

It will be apparent that, when'themachin'e as awhole is being operated. by turning-the flywheel, the'motor will not rotate by virtue of the free-wheel device because the rim 20 when. driven clockwise bythe sprocket *20'and shaft '9 will merely urge the balls 20 towards thedeeper portions of the recess in the wheel 22- where they willfbe inoperative, to aiford 'a driving connection between therim20 and the-wheel 22.

Referring now a Figs 4 toejthfslicing machine therein partly shown is also. of .the

reciprocatory carriage type. The carriage.

.and the flywheel have not been shown, butthe connections between" these parts andthez'counterr-shaft '16 is similar to those; hereinbefore described with reference to,andas illustrated in,Fig-.1.'. =A sprocketwhee'l. 40 and 'a'pulley '41 are securedfast to an additional shaft42' as best illustratedin'Fig. 6. A" sprocket; wheel 43 i 1 mm. pulley '44zareurigidly' interconnected andare' mounted on the. shaft 42in such mane -ner-as tobefreelyi rotatable thereon; The .two pul1eysw41 and constitut'ela fast'and loose pulley unit having a driving come-c;

mathmighthe belt 7 with the drivin'g pulley 6 on the motor shaft. The 'dr ivingpul ley 6 is diametricallysmall but azrially long, and is connected through a free-wheel device 5, such as that shown in Fig. 2, to the. motor shaft. The belt 7 is controlled by a belt shipper 49, which can be moved so as to cause the belt to: wrap'either the fast or the loose pulley, or to wrap. both of them. The

three positions of the belt shipper 49 are defined by notches 45. therein, ,with' whichl notches a springrpr'essed pawl co-ofperates, the pawl being represented. conventionally at 50" ,The loose sprocket wheel 43 is connected by a chain 46"to thesprocket wheel, 18 on the; counter-shaft ,.16,;,and; the fast sprocket wheel 40 is connected by a chain 47 to-the sprocket wheel 20: on the knife-shaft 9 The operationof the machine, when the motor is-"running, 1s as follows When" the belt-7 wraps the fast and the loose pulleys 41 and 44, both the knife shaft and the counter-shaft are rotated through their respective chain-and-sprocket drives,

and, in consequence, the knife and the carriageare power-operated. When the belt wraps the fast pulleyv 41 and notv the loose,

pulley 44, the knife rotates but the carriage remains at rest. If desired however, the

carnage may be reclprocated by hand When the belt wraps the loose pulley 44. and

not the fast pulley. 41, the carriage is re-.-.

ciprocated, but the knife remains at rest, W

The operation of the machme, when the motor is inoperative and the flywheel is turned manually, is as follows When the 'belt i wraps the. fastand' loos pulleys both the knife and the carriage are operated. The rotation of the pulleys, however, will not be transmitted to the motorshaft on' account'of the free-wheel'between it and the pulley 6, When thebelt wraps .either the .fastor the loose pulley, the car- :riage is reciprocatechbut the knife remains at rest.

It should be no'ted that the severaldiffer- -ent operations; whichymay be effected by themachine are selected bylmeans of a single hand-member, viz. the belt-shipper45. "If desired, the handle hymeans of which the belt-shipper is shifted may be fitted with an electric switch 48incircuit with the m0- tor.' Thisswitch would. serve as aconven ient means of switching the motor on or off, :ltwillbe apparent that the arrangement of the smalldriving? pulley and relatively ."large driven pulley affords a speed-reduo tion devicebetweenthemotor and the inachine.-

In eitherof theconstructions h ereinbefore descr'ibed, a free-wheel device may bein serted between the fiyswheel shaft 10. land thebevel gear-wheel 11 thereon, the arrangement being such that, when themachine is driven by the power me chanism, 'the"- flywheel andjlts shaft. remain at rest-In machlnes 1n which'th'is-free-wheel devlce i's'not provided, the handle of nism for rotating said the. usual fly-wheel may be adapted for easy removal or to be turned down out of the way in order to avoid accidents when the machine is being motor driven.

As will bejapparent, slicing machine o'f cithenof the constructions herein described can be operatechat will, either by hand or by power without interfering with or altering in any way the component parts of the machine. On interrupting the operative connection between the rocatory carriage, the knife canbeanotordriven at a high speed, while the reciprocatory carriage can be hand-operated, this be ing particularly advantageous as itallows the operator to regulate the rate of cutting when slicing certain kinds of meat, particularly such as may have pieces of bonein' them. hen the or cleaned, the'carria-ge may knife has to be sharpened be maintained at rest while theknife is rotating. over, the knife can be allowedto remain at rest while the carriage is hand-reciprocated, or, in the second construction herein described, is either. power-reciprocated,v past the stationary knife. This isespecially advantageousfor the slicing of cheese, bread and" other soft substances, which have I ,come considerably distorted when out by a rotating knife.

. It is to be understood that modifications of the form of' the inventionherein described and illustrated may. bemade with out departing from the scopeof the invention. V

I claim:' 1. In a slicing ma-chinehaving a rotary slicing knife and a reciprocating carriage, the combination with motor driving mechanism for rotating said knife, a free-wheel connection in said drivingmechanisinpreventing said driving mechanism from beingdriven by the rotation of said knifein one direction, driving mechanism between said knife and carriage, and a. clutch interposedin said last-named driving mechanism- 2. In a slicing machine .having a rotary slicing knife and, a reciprocating carriage, he combination with motor driving mechaknife,.a free-wheel connection insaid driving mechanism preventing said driving mechanism from being driven. by] the rotation of saidknife incone direction, driving mechanism between said knife and carriage, a clutch'interposed in said last-named driving mechanism, and.

v knife and between said knife and carriage, a

spect' to said carriage, of a driving motor,

mechanism actuated by sa d motor forsiknife and the recip- 'reci rocatin said carria e Moreknife and areciprocating carriage, a driving hand-reciprocated, or-

been. found" to her 7 .knifei by said manually operated driving multaneously rotating said knife and causing relative bodily movement between said knife and carriage, said mechanism including means for rotating said knife by said motor while said knife and carriage its rotary movement. a l. In a slicing machlne havlng a, rotary knife and a reclprocatingcarrlage, a driv- ,ing motor, mechanism actuated-by said'motor said knife and" said mechanism including means for disconnecting said mechanism from said carriage to drive said knife alone while permitting manual reciprocation'of said carriage, said mechanism also including means for disconnecting said mechanism from said knife to drive said carriage I while said knife remains stationary.

.. 5. In a slicing machinehaving a-rotary I for simultaneously rotating motor, driving mechanism between said 'motor and knife, driving mechanism betweensaid knife and carriage, 'manually operated. driving means connected with said last named driving mechanism, means for simul f taneously driving said knife and'carriage by said motor, means for separately driving said knife or carriage by said motor, means for simultaneously. driving-said carriage and 106 means, and means for separately'driving said carriage or knife by said manually operated ClI1V1Ilg means. I

6. In a"slicing machine having a rotary knife and a reciprocating 'carriage,the com- .105

bination with amotor, sand-driving mecha nism connected therewith for rotating said knife and reciprocating said carriage, hand operated means connected with'said mechanism for reciprocating. said carriage and rotating said knife,

.110 means in said mechanism for slmultaneously and separately dilVlIlg said knife and carriageby said motor and for simultaneously and separately driving said knife and carriage by said hand operated means, and means automatically pr'eventing said motor from being driven when said slicing machine is'driven by said hand oper ated means. i

7. In a slicing machine having a rotary knife and a reciprocating carriage, a motor, driving mechanism between said motor and operated means connected with said driving 130 mechanism for simultaneously and separately driving said knife andcarriage I 8. In a slicing machine having "a rotary knife and a reciprocating carriage, the combination with a motor and driving mechanism connected therewith for rotating said knife and reciprocating said carriage, hand oper ated means connected with said mechanism for reciprocating said carriage and rotating said k-nife, and a fast and loose pulley mechanism for simultaneously and'separately driv 111g said knife and carriage by said motor and for simultaneously and separately driving said kni-feand carriage by said handoperated operated mechanism, and a single manually operated member for controlllng said means.

10; In a; slicing machine having a rotary knife and a reciprocating carriage, the combination'with a motor and driving mechanism connected therewith for rotating'said knife and reciprocating said carriage, hand operated means connected with said mechanism for reciprocating said carriage and rotatingsaid knife, and a fast and loose pulley mechanism for simultaneously and separately driv ing said knife and carriage by said motor and for simultaneously and separately driving said knife and carriage by said hand operated means, and a single manually operated member for controlling said fast and loose pulley mechanism. e

11; In a slicing machine having a rotary knife'and. a reciprocating carriage, the combination with a motorand driving mechanism connected therewith for rotating said knife and reciprocating said carriage, fast and loose'pulley mechanism in said driving'mechanism for, simultaneously and separately driv-- ing said knife and carriage. i 7

12. In a slicing machine having arotary knife and a reciprocating carriage, the co bination with a motorwand driving mechanism connected therewith for rotating said knife and reciprocating said carriage, a fast and loose pulley in said driving mechanisn a belt for driving isaid pulleys from said motor, said} carriage being driven through one off said pulleys and said'knife being driven by the other of said pulleys, andjmeans for shifting said belt from one pulley to the other and to an intermediate position for driving both pulleys simultaneously.

and motor.

slicing knife, motor havlng mechanism connecterl there's 13. In a slicing machine having a-rotary v knife and a reciprocating carriage, the combination with a motor for'drivi-ng said knife andcarriage, a spindle, fast and loose pulleys on said spindle,a belt driven by said motor, means for'shifting said belt to selectively engage either or both of said pulleys, driving mechanism connecting one ofsaid pulleys with sand reciprocating carriage, driving mechanism connecting the otherof said pulnism connected therewith' for rotating said 7 knife'and reciprocating saidcarriage, a fast and loose pulley in said driving mechanism, a belt for driving said motor, said carriage beingdriven through one of said pulleys and said knife being driven by the other of said pulleys, means for shifting said belt from'one pulley to the other andto anintermediate position for driving both pulleyssimultaneously, and a free-wheel connection between said pulleys 15; In a slicingm achineihaving a rotary knife and a reciprocating carriage, the combination with a motor and ,driving mechanism connected therewith for rotatingsaid knife andreciprocating saidcarriage, a fast and a loose pulley in said drivingmechanism, a belt for driving said'pulleys from said motor, said carriage being driven through one of said pulleys and saidflmife being driven bythe other ofsaidpulleys, a member for shifting saidbelt from one pulley to the other and to an intermediate position connecting both pulleys, and a switch on said member for controlling said motor.

7 16. In a slicing machine having a rotary knife'and a reciprocating carriage, shaft having a crank and connection rod connection with said carriage, a gear on said'shaft, a second gear driven by a hand operated flywheel meshing with said first-named gear, a gear having a sprocket at one; end meshing with said first-named gear, a spindle having fast and loose pulleys thereomasprocket on one of said pulleys meshing "with said firstnamed sprocket, a driving connection extending between the other of said pulleysand said knife, a motor having flexible driving means for rotating said pulleysgandmeans for shifting said flexible driving means from one pulley tothe other and to anintermediate point connecting both pulleys for simultaneous rotation thereof.

17. A slicing machinecomprising arotary a rec procatmg carriage, a

with for rotating saidknife; a 'free wh'eel pulleys from said connection in said driving mechanism for preventing said mechanism from being driven by the rotation of said knife in one 7 direction, driving mechanism between saidknife and carriage, and a clutch interposed in said last-named driving mechanism, said c free-wheel comprising a pair of relatively movable members rotatable about an axis concentric with the axis of rotation of said 10 knife, said members having opposed faces inclined toward each other so that said faces are closer together at one position therealong than at another position, and a member interposed between said faces of greater thick-' ness than the shortestdistance between said facesand of less thickness than the greatest distance between said faces. V f Y In testimony whereof I have signed my name to thisspecification on this 31st day-of May, A. D. 1928. e i CORNELIS F. M. vAN BERKEL;

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