US2192266A - Thermoplastic label dispenser - Google Patents

Description

March 5, 1940- E. L. KALLANDER THERMOPLASTIC LABEL DISPENSER Filed 001;. 22, 1938 3 Sheets-Sheet 1' March 5, 1940. E. L. KALLANDER THERMOPLASTIC LABEL DISPENSER Filed Oct. 22, 1958 3 Shegts-Sheet 3 ,f\ a I 6 42K \3 37 I @230, Er Z M v" 0 Qy .waexga.

Patented Mar. 5, 1940 a g i UNITED STATES PATET FF ICE' THERMOPLASTIC LABEL DISPENSER Ernest L. Kallander, Framingham, Mass, as-

- signor to Dennison Manufacturing Company,

Framingham, Mass, a. corporation of Massachusetts Application October 22, 1938, Serial No. 236,597 4 Claims. (01; 263-7) While the present invention relates particu- Fig. 2 is a side elevation with parts broken larly to devices for dispensing thermoplastic away; labels, that is labels coated with material which Fig. 3 is a section on line 3-3 of Fig. 1;

must be heated to be tacky, in some of its as- Fig. 4 is an end elevation with parts broken 5 pects the invention is applicable to devices for away; 5

dispensingany kind of labels or other slips. Fig. 5 is a section on line 5-5 of Fig. 4;

The principal objects of the invention are to Fig. 6 is a section on line 6-6 of Fig. 4;

provide a device of the character referred to Fig. '7 is avertical central longitudinal section which is simple and economical in construction, of the label-feeding means with parts omitted;

0 which is reliable and durable in operation, which and I is readily portable and which can be easily op- Fig. 8 is a sectional view taken on the line erated by hand. In its more specific aspects the 88 of Fig. 2, parts being broken away. objects of the invention are to provide a device The particular embodiment of the invention which receives labels in any form and delivers chosen for the purpose of illustration comprises them in tacky form, which makes the labels tacky a base I, provided with four upstanding posts 2 without applying liquid to them and which does upon the upper ends of which is mounted a cupnot tend to become gummed. shaped casting 3, the posts 2 being secured to In one aspect the invention involves a turntathe base i and the casting 3 by means of screws me having an upper surf'ace'for supporting labels 4. As shown in Fig. 3 the casting 3 is provided with their gummed sides uppermost in combinawith a central opening surrounded by a hub 5 tion with means for depositing labels of said in which is rotatably mounted aturntable comsurface in spaced relation to each other and prising a perforated diskfi whose periphery rests means for heating the labels'while on the turnupon the peripheral flange l of the casting 3, a 2 table. The turntable is preferably rotated step pivot pin 8 having an enlarged upper end 9 fit- I by step so that the operator can pick up a label ting in the opening in the boss 5, a reinforcing 2 each time the table comes to rest. By controldisk Ill, a ratchet wheel H and screws l2 for seling the rotation of the table with a handle 10- curing the rotating parts together. A seriesof cated adjacent the label feeding means, a single electric heating elements l3 are mounted in the operator 'can conveniently attend both to the uph p Casting y means of Straps and label supply and the rotation of the table. In screws l5, the casting being provided with open- 30 the preferred form of the invention the turntaings I6 to accommodate the binding posts ll to ble comprises a perforate sheet with stationary whichcurrent is supplied through a cable l8 heating means under the sheet, whereby the and a switch 19 which is preferably of the three labels may be quickly heated without rotating po iti n yp c nn #1 of the heating ni s t heating means t t t m in circuit in one position for quick heating, con- 35 In another aspect the invention involves an meeting a lesser number of heating units in elevator for lifting a stack of labels and means mm in m Position for medium heating abovethe stack engageable with the top label g ef f i smaller f m heatmg for limiting the upward movement of the units 1n circurt in another position for low heat. vator and transferring the top label from the The mechamsm for Supplymg labels to the l turntable comprises an elevator platform 20 for stack, this means preferably comprising a friccarrying an inclined stack of labels L (Figs 1 tion roller for slidingthe top label oil the stack and 7). The platform 20 is mounted on a cross andrmeans Preventing the underneath labels bar 2| which in turn is mounted in the arms 22 from Sliding with the tap l By Suitably of a bracket 23 by means of pins 24 fast in the terconnecting the, label transfer means and the n of bar 2a and projecting through slots 25 turntable in timed relationship the labels'may be in the arms 21 The bracket 23 pivotany deposited on the turntable in spaced relationship mounted on t base t, 25 and has n integral t y y 'r ad ypicked l by h extension 21 to carry an adjustable counter- 50 p or after they become tacky. weight 28.to cause the elevator to lift the stack 50 For the purpose of illustration a typical 'emof labels against the feed'roller 30 (Fig. '7) and bodiment of the invention is shown in the acthe stationary stop .3! (Figs. 1 and 2). Mounted companying drawings in which I A on the base I at one end of the platform 20 is Fig. l is a top plan view with parts broken a pair of inclined bars 32 which provide a guidaway; 7, 7 way 33therebetween. As shown in Fig. 8 the 55 end of the bar'Zl projects through this guideway 33, the end oi the bar being reduced in crosssection with the sides of the reduced portioninclined at the same angle as the bars 32 to v against the opposite sides of the guideway 53. Thus, as the elevator it rises it is maintained in a horizontal positionby the end of the bar fitting in the guideway 33, the pinsid sliding in the slots 25 to permit the bracket 23 to swing about the pivot 26 while the elevator 26 moves in a straight line parallel to the inclined bars cup-shaped casting 3;. has a pair oi depending lugs 31 adjacent the elevator for supporting a wedge-shaped metal block 38 through the medium of screws. 39 extending through the lugs 3-! and thence into the block 38. The outer inclined face of the block 38 is provided with a dovetail guide d0 (Figs. 2 and 4) in which is slidablymounted a wooden block M. The block 46 is yieldingly urged upwardly along the dovetail guideway by means of aspring 92 and the upward movement of the block islimit'ed by an adjusting screw it threaded through a post d6 mounted on the block 4 l alock nut l5 being provided to hold the screw 43 in adjusted position. ''As shown in Fig. 'l-the upper end of the-block 4| carries a felt pad d2 which has a rounded nosedisposed adjacent a second iced roller 56.1 The rollers 3t and be are preferably formed of moderately soft rubber or other material which affords considerable iric-. tion. Thus when the rollers 3d and 5!! are'rotated in the direction of the arrowsin Fig. lthe top label is slipped off the stack and projected onto the turntable 5 at the'approxirnate position indicated at Lf in Fig. 7, the felt shoe 42 serving The mechanism io'r actuating the turntable d and the rollers 39 and 50 comprisesan arm 5! provided. with a hub52 fltting' o'ver the smaller lower end of the pins 8, the hub being supported by a member. 53 suitably secured tothe lower end for the pin 8. As shown :in Fig, 1 the arm 5! carries on its upper surface a pawl 55 whichiis held in engagement with theratchet wheel i I by means of a spring 55; Pivotally'connected to the arm .51 atfifi is a rod 51 sliding in a guide 58 which 'i is secured to the under side-of the casting 3. "The outer end' of the rod 51 is provided with a handle 59 with which the rod may bev pushed inwardly, the spring 60 returning the rod to its position shown in- Fig. 1. 'Pivotally connected to the; arm 5| at El is a link 52, the other end of the'link'being pivotally'connected to a sleeved;

sliclable. on rod 64 which reciprocates back and forth inthe guide lugs 65 fast to the bottom of thecasting 3.; The sleeve'63 is free to slide back and forth on the rod 64 between a fixed stop 6? andgan adjustablestopia, whereby the rod fid I no maybe moved back and forth by the sleeve more or less depending upon the position of the stop 68 on the rod.| At the right-hand end the rod Si is provided with teeth to form a. rack 19. for rotate V mechanism.

ing the rollers 30 and 5 0 through the following Journaled hi bearings fast to the main frame itioinited on the platform Zllbymeans of Referring particularly to Figs. '2 and- 7 the wheel t6 over-which the pawl labels the turntable. j By suitably adjustin heating the labels while onfthe turntable.

a ioaaeo (Fig. 6). Loosely rotating on the'shaft u is a gear 84 and fastened to theiront side of the j v scar by means of screws 85 is a ratchet wheel as,

engaged by the pawl as. Ed is a gear 8? fast to shaft Rand fast to the shaft '33 is a gear 33. The shaft l2 also carries a gear 89 meshing with gear 9@ on shaft id. Thus when the rack it moves to the left the roll ailis' rotated th'rough gear 8'l,:pawl-83, ratchet 86, gear as, gear d'i, gear St and shaft 83. At the:

Meshing with the gear-1;}

same time the roller 50 is rotated through the. same train oi mechanism up to the gear 8'! and; v 7 thence through shaft l2, gear as, gear $3 and j shaft l4. Thus the two rollers 3d and at rotate in unison, eitherat the same peripheral speeds.

or preferably with roller 50 rotating at a slightly; greater speed. ,To adjustthe extent of rotation of the rollers 30 and 50 for each operation, to suit time the rack iii nioves'to the right. V Disposed. over the turntable'is a hood i. remov ablyv secured to the base i by means of iwing inuts F $l2- (Fig. l), the hood. preferably covering" all or:

the turntable'except a limited area'acoesslble through the opening93lnear the handle 59 Which affords access." to the labels afterthey have trav 1.,

eled almost 360-around;f{the axis oi the turntable. 7

From the fqregolng ibwfil be evident-thatupod V pressing inwardly the handle 59 6f the plunger 51 V the turntable is rotated .onefstep counterclockwise through the medium of the arm to project the topmost label .from, thejstack of the driving mechanism the labels maybe d thereby rotating the. rollers 30 and 50 suiiiciently posited on the turntable inspaced relationships.

in contradistinction to touching or overlapping, .45

relationship, thereby to make it -'easier forthe operator ,to pick the labels one by. one oi? the turntable as they come around to the operators position adjacent the haindle' '59. As, the labels are projectedfrom the top of the stack the elc- '9 vator gradually rises unde'r th e influence of the 7 weight 28' until all of the labels have been de livered to the" turntable To refill the machine; the platform is depressed to the position shownin'. f Fig. 2 and a new stack of labels-is placed on the- 'platform.;- By inclining the stack relative to the platform 2&1 the labels have 'less tendency to stick ltogether, particularlyinlthe case of. embossed labels.

1 It should'be' understoodthat thepresent disclosure is for the purpose or il u trauonibmy... and that this invention includes all modifications; and .equivalents which the appended claims,

iall within the scope :or

1. Apparatus fordispensingthermoplastidlabels .comprising a turntable having an upper su iace for supporting labels with their "'gum'med sides uppermost; means for rotating 'said turnrtame, means for depositing labels on said surface in" spaced relation 'to each other, and .mearis f.

'2, Apparatus for-dispensing thermoplastic la;

' bels comprising aturntablejihaving arr'upper sun face for supportinglabelswith their -gum med' sides uppermost, means .for-ro'tating said'turn:

table step by step, means for depositing a label on said surface each time the turntable is advanced one step, and means for heating the labels while on the turntable.

3. Apparatus for dispensing thermoplastic labels comprising a turntable having an upper surface for supporting labels with their gummed sides uppermost, means for rotating said turntable step by step, a handle at one side of the turntable for controlling said rotating means, means adjacent said handle for depositing a label on said surface each time the turntable is advaneed one step, and means for heating the labels while'on the turntable.

4. Apparatus for dispensing thermoplastic 1abels comprising a turntable having a perforated surface for supporting labels with their gummed sides uppermost, means for rotating said turntable step by step, means for depositing a label on said surface each time the turntable is advanced one step, and stationary means under said surface for heating labels while on the turn- 10 table.

. ERNEST L. KALLANDER.

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