US1780165A - Coin-controlled weighing machine - Google Patents

Description

Nov. 4, 1930. H. s. BENJAMIN COIN CONTROLLED WEIGHING MACHINE Filed OCT.. 7, 1927 7 SheetSfSheet 2 Nov. 4, 1930. H. s.- BENJAMIN COIN CONTROLLD WEIGHING MACHINE Filed Oct. 7, 1927 7 Sheets-Sheet4 3 i Vuz Illia NQV- v4, 1930. H. s. BENJAMIN 1,780,165

COIN CONTROLLED WEIGHING MACHINE @Noruega Nov. 4, 1930. H. s. BENJAMIN COIN CONTROLLED WEIGIiIN-(r MACHINE 7, 1927 'T SheetS--Sheet Filed Oct.

Nov. 4, 1%@ H. s. BENJAMIN I S@ I COIN CONTROLLED WEIGHING MACHINE Filed Oct. 7, 1927 7 Sheets-Sheet 6 NOV. 4? QS. M s. EENJAMlN JSS COIN CONTROLLED WEIGHING MACHINE Filed Oct. '7, 1927 '7 Sheets-Sheet '7 @Norway Patented Nov. 4, 1930 UNITED ,STATI-:s

PATENT OFFICE HARRY S. BENJAMIN', OF DETROIT, MICHIGAN' com-CONTROLLED WEIGHING MACHINE .Application led October 7, 1927. Serial No. 224,580.

with the date, and the ticket then delivered,

and an object of the invention is to provide an arrangement whereby a paper strip in roll form is employed and end portions of this strip printed and then severed to form the 1o tickets, said end of the strip being fed vertically downward from the roll in a manner to secure accuracy and prevent tearing of the paper, the tickets falling by gravityv when severed and the-arrangement preventin ac- "cumulation of dirt or other matter w 'ch would interfere with the printing. A further object is to provide an arrangement whereby Ithe parts of the mechanism arerelieved from strains and breakage is obviated, the printing and feeding mechanism bein independent of the platform operated i coc ing-'up means, which .means is arranged to first store up power for operating sald mechanisms and is then freed therefrom. It is also an object to provide an arrangement whereby the ticket printing and delivery mechanisms will not be operated when there is no weight on the platform, as when the person steps from the platform before inserting a coin, and will not be 3o operated except bv a goodcoin. A further object is to provide means operated byand operating to controlthe operation of the ticket printing and delivery mechanisms whereby said mechanisms are prevented from operation upon 'the insertion of a slug of the l size and form of a penny or having holes therein,.and to also provide automatically operated means for returning to .the cusupon the line 10j-10 of Fig. 2;

tomer, coins inserted when he is not on; the platform and the machine is not set thereby to operate. It is also an object to provide an arrangement whereby the mechanism may be set fonoperation by a child stepping upon the delivery mechanism. A further object is to upon the line 11-11 of Fig. 3'

platform, the lever arrangement being such provide certain other new and useful features, all as hereinafter more fully set forth.

With the above and other ends in view', the invention consistsin the matters hereinafter set forth and more particularly pointed out in the appended claims, reference being had to the accompanying drawings in which- Figure 1 is la vertical section through the casing and base of a machine illustrative of the invention and showing the lever lmechanism in the base in section and the mechanism in the casing in elevation, portions ofthe machine being broken away to shorten the figure;

Fig. 2 is a transverse vertical section through the casing showing the mechanism theiein in elevation;

Fig. 3 is an enlarged view of the upper part of Fig. 2 with parts of the mechanism in section to more clearly disclose the-construction;

Flig. 4 is a rear elevation of Fig. 3;

Fig. 5 is' a vertical section showing the mechanism disclosed in Figs. 3 and i in side' elevation looking toward the left in Fig. 3 or toward the right in F ig. 4;

Fig. 6 is an enlarged sectional detail showing coin detecting mechanism in rear elevation;

Fig. 7 is a detail view taken at right angles to that of Fig. 6;

Fig. 8 is a vertical section from front to rear of the machine substantially on the line 8 8 of Fig. 9 and showing coin control and v detecting mechanism in side elevation;

Fig. 9 is a view showing in front elevation, the mechanism disclosed in Fig. 8;

Fig. 10 is a horizontal section substantially Fig. ll is a similar section substantially Fig. 12 is a horizontal section through the base of the machine substantially upon the line 12-12 of Fig. 13 and Fig. 13 is a central vertical section substantially upon the line 13-13 of Fig. l2.

The embodiment of the present invention as disclosed in the accompanying drawings includes the usual base l and upright casing 2 at the rear of the base within which hase and upon the weighing mechanism, thereby secur-` casin is housed the weighing, ticket printing and elivery mechanisms, all operated by means of the weight of a person on a platform 3 supported upon a suitable arrangement of platform levers housed within the base. The arrangement of platform levers isV such that theinitial depression of the platform operates through a series of levers, to place the ticket printing and delivery mechanism in operative condition, and thereafter the full weight of the person is impressed ing accuracy in the indicated weight of such person.

The accuracy o f indicated weight is secured, comprises pairs of bell-crank levers 4 pivotally supported upon the base and having the downwardly extending arms of each pair at 'each'side of the base connected by connecting rods 5 and their upper arms pivotally connected by open linksv 6 and 7 to platform levers 8 and 9, the lever 9 being the main weighing lever and the lever `-8 being the auxiliary lever which is supported from the main lever through; the knife bearing ring 10, with the platform'supported at one end by means t of legs 11. engaging knife-edge bearings on the lever'8, and at its opposite end by legs 12 engaging knife-edge bearings on the main lever 9. Initial weight on the platform therefore rocksthe bell-cranks 4, imparting an endwise movement to the rods 5 which in turn, operate bell-cranks 13 to raise a weight 14 to the ends of which the bell-cranks 13 are pivotally attached, and further turning of the bell-cranks 4 brings their upper arms into contact with stops 15 non the main lever 9. Thereafter the full weight on the platform is applied to the main lever 9,-the effect of the Weight 14 having been provided for in the balancing of the scale, andthis weight' is transferred by said platform lever 9 to a pair of balance springs 16 (see Figs. 2, 3 and 4) anchored at their upper ends Within the casing 2, through a rod 17 connected in the usual manner at its lower end to an end ofthe main platform lever 9'by means of the open link 18 and at its upper end to a cross-bar 19,

f to the load, and this proportionate move.

which inV turn is connected by rods 20'to a similar cross-bar 21, to the ends of which the lower ends of the springs 16 are attached.

Weight on the platform will thus cause the.

Springs 16 to yield and effect a downward movement of the cross bar 21 in proportion ment is effective in rotating a weight indicating and printing wheel 22 having raised figures on its periphery indicating pounds, through the medium of a pair of opposed rack-bars 23, one pivotally connected at its l lower end to the bar 21 and the other guided for free vertical movement in engagement with a pinion 24 secured upon the shaft of the weight printing Wheel 22, motion being arrangement of levers whereby such transmitted from one to the other of said rack bars by an interposed idler 25`(see Figs. 2 and 3). To check vibration of said wheel 22 andy bring it quickly to rest, a dash pot 26 is4 supported beneath the bar 21 with its piston connected thereto in the usual manner.

Again referring to Figs. l, 12 and 13, in order to prevent the unauthorized removal of the platform 3 and yet permit of its ready removal by the attendant so that he may have ready access to the platform levers for repair, oiling, cleaning, etc., a rod or rods 27 are secured to the under side of the platform and extend downward with their laterally bent lower ends normally extending beneath a cross-bar 28 secured atits ends to the connecting rods 5. Initial weight on the platform which moves these rods 5 endwise will therefore carry the bar from over the laterally bent ends of the rods and permit the platform to be lifted off provided the bellcranks 4 are held in the position to which they have been moved by'the initial depressing of the platform, and, to permitsuch holding of these parts by the attendant while he removes the platform, a suitable door or other means of access (not shown) to the interior of the casing 2 is provided so that he may, by opening the door, hold the Weight 14 in its elevated position, and thus hold the bar 28 in a position to clear the locking rods 27. It is therefore unnecessary to tip the machine or dismantle it in order to gain acess tothe plat- -form levers. v

For the purpose of setting the mechanism in lll the casing 2 so that upon release by a coin. l

said mechanism will operate to print upon a ticket the exact weight of the person upon the platform and deliverthe ticket, a cocking rod 29 is pivotally connected in any suitable manner at its lower end to the weight .14 so that the initial downward movement of the platform will raise this rod vertically, it'beguided in such movement betweensuiti o' alllile guide rollers 30 on a supporting frameV mounted within the casing and comprising a plate 31 and a parallel spider plate 32 see Fig. 11) spaced apart and secured together 1n lll lll

any suitable manner and rigidly supported upon vthe framing of the casing to also provide a support for the shaftl of the weight wheel 22 which lies between said plates, and a place of attachment-for other mechanism.

vThis cocking-rod 29 has pivotally attached thereto, an L-shaped pawl 33 (Figs. 4 and 9) normally held by a spring 34 with its upwardly extending arm in contact with a stop and parallel with the rod 29 so that upon upward movement of said rod, .said arm of the pawl will engage a lug 35 ona trip bar or rod.36 at the opposite side of the plate 31, which trip bar is guided in its vertical movement parallel `with the cocking rod, between rollers 37 on said plate. Weight on the platform therefore raises both the cocking rod and trip bar lll and `as long as a person remains upon the platform, the cooking rod remains in its raised bar, is a pivoted latch 41 having a projectionv to engage said detent, and pivotally supported on the bracket adjacent said latch is a long trip lever 42 having an arm 43 (Fig. 9)

.to engage beneath said latch and raise the same when the long end of the lever which normally projects into the path of a coin passing down a coin chute 44 is engaged by a coin and is tilted downwardly thereby. The trip lever 42 is weighted at its short end to balance the wei ht of its long arm so that it will be tripped y the coin and thus operate to raise the latch and release the latch arm 38, permitting the trip bar 36 to descend under the influence of a spring 45 anchored at one end and attached to the latch arm at its other end adjacent the bar. To delay slightly, the downward movement of the trip bar 36 when so released, and thus permit the weight printing wheel 22 to come to rest before the printing mechanism hereinafter described is released by the downward movement of said trip bar to print the ticket, a dash pot 46 is supported below the long end of the latch arm 38 with its piston connected in the usual man ner with said arm. An adjustable stop47 is provided on the latch 41 so that said latch may be nicely adjusted to release the latch arm 38 at the proper time and under the influence of a light coin acting on said trip 1ever 42.' When a person -steps on the platform, the cooking rod` is therefore raised and raises the trip bar 36 which is latched up and remains so until released -by the insertion of a good coin.

When the cocking rod 29 is raised by a person stepping .upon the platform, it carries with it the pawl 33, which, as before described, operates to raise the trip bar 36, and as said cocking rod reaches the upper end of its movement, the laterally extending arm of the pawl 33 comes into contact with a pin 48 (Fig. 4), turning said pawl against the action of its spring 34, from beneath the lug 35 on the trip bar 36 and at the same time engaging a pendant member 49 pivotally attached to a cam plate 50 which in turn is pivotally supported by butfree tov rotate upon a shaft 5l. This pendant 49 when swung by the pawl 33, engages an arm 52 secured to said shaft 5l, turning said arm and shaft and also turning an arm 53 secured to the shaft-and to the free end of which latter arm a'rod 54 is connected and extends upwardly in the casing to an arm 55 (Figs. 8 and 9) on a shaft 56 supported adjacent the upper end of the coin chute 44 and having a deliector arm or shutter 57 thereon within the coin chute, which deiector is normally held in a position to permit the coin to pass directly down a chute 58 into a return pocket 59 opening through the front of the casing so that when there is no weight on the platform, a coin inserted in the chute will be returned Athrough the pocket to the operator. When the operator steps on the platform, the deflector 57 is at once turned by the turning of the shaft 56 by the rod 54, to av position across the chute 58, at the same time opening the passage into a branch chute 60 arranged to conduct the coin into the upper end of the chute 44.

Should the coin inserted be of small diameter, it will tilt laterally in passing down` the branch chute 60 as it will not be guided at both top and bottom by the chute, and will fall out laterally through an opening 61 therein into a suitable receptacle 62.

Immediately upon release of the trip bar 36 by the coin falling upon the end of the trip lever 42 projecting into the chiite 44, and the release of the latch mechanism thereby, the defiector 57 is returned -to normal position by a spring 63 (Figs. 8 and 9) which acts to rotate the shaft 56 in a direction oppo.

site to that in which it has been turned by the rod 54, this return movement being permitted by the disengagement of the pawl 33 from the pendant 49 when the trip bar 36 falls, as will hereinafter appear.

On the trip bar 36 is a pin 64 (Figs. 2` 4 and 9) which, when vsaid bar is released by thelatch mechanism and falls, comes into engagement with an inclined edge 65 of the cam plate 50, turning said plate upon its shaft 51 to the position shown in Fig. 9, releasing the pawl 33 from engagement with the pin 48 and carrying the pendant 49 away from the arm 52, thus permitting the arm 53 to swing upwardly and the defiector 57 to be returned by the spring 63 to a position to defleet a coin into the return chute 58.

The cam plate 50 is operatively connectedl l meral 69 to present a different sign upon each c downward movement of the trip bai' 36, said mechanism being of any suitable construction adapted to be operated by the cam slide 68.

A continuous strip of paper wound into a at roll 7 0 is supported in the upper part of k1, 2, 3 and 4), said roll being wound upon a wooden core 72 carrying a spring clip 73 adapted to engage in a groove in the stud and hold the roll in place thus providing convenient means for mounting the roll in the casing so that a new roll may be quickly slipped into place when the strip has been used up in the printing of tickets by printing thereon from the weight wheel at each operation of the machine and the severing of the tickets from the end of the strip as hereinaft'er described.

To prevent the roll of paper from-turning too freely when the strip is drawn therefrom and also to prevent backward turning of the roll, said core 72 is mounted upon a sleeve 7 0a and secured to this sleeve is a ratchet wheel 70b engaged by a pawl 7 0c mounted upon the frame forming the support for the stud 71.

From the periphery of the roll 70, the paper strip is led downwardly at one side of the casing asbest shown in Fig. 3, between a curved guide wallV 74 and an idler 75 near the upper end of said wall, thence downward between said wall and a presser plate 76 which is pivotally supported at 77 intermediate its ends. The strip then passes over feed rolls 78 spaced apart upon a supporting shaft 79' to turn freely thereon, (Fig. 5) said wall 74 being curved adjacent the upper and one side of the rolls and spaced the thickness of the Vstrip therefrom to guide and hold the strip with the radially projecting pins80 on the rolls engaged in a series of holes formed in 1 the strip along the edges thereof. From the having gagementof rolls the strip passes vertically downward adjacent the periphery of the weight wheel 22 and through an opening in a knife block 81 a reciprocable knife slide 82 at its under side carryifr'i a detachable knife 83 adapted lto be prjected across the opening in the block, and sever the projecting end portion of the strip after the printing operation has been completed, the ticket thus severed from the strip falling freely downward into the delivery pocket or cup 59 opening through the front ofthe casing and i`nto which the coins returned through the chute 58 are delivered.

To prevent the strip from being torn and to relieve the feed rolls 78 from all strain in feeding the strip, so that said strip will be properly' and accurately fed by the enthe pins 80 on the rolls with the l holes in the strip, a 'loop or slack in 4the strip indicated at 84 in Fig. 3, is formed in the strip just above the feed rolls, by means of ay roll 85 suspended by means of arms 86 at its ends, v

for swinging. movement within a slot in the wall 74, said roll being swung outwardly in timed relation to the operation of the feed-- rolls 78 and other mechanism to form said loop in the strip, the strip being drawn from the roll by this swinging movement of the looper roll and being prevented from being drawn from the feed rolls 78, by the presser plate 76, which plate is turned upon its pivotal support 77 by the swingingv of the looper roll 85 toward the upperpend of said plate and thus causing the paper strip to be clamped between the lower end of the presser plate and the wall 74 between the feed rolls 78 and the looper roll 85. To impart this swinging movement to the looper roll 85, one of said arm 86 is extended beyond the pivotal support for said arms and to this upwardly extended arm is pivotally attached one end ofv a bar 87 mounted on the supporting plate 31 for free longitudinal movement and actuated in one direction by a spring 88 to swing the looper roll away fromv the paper strip, and in the other direction by means of a dog 89 pivotally attached to the upper end of the cocking rod 29 and prevented from'turning on its pivot in one direction by a tail on the dog engaging a stop pin 90 on the'cocking rod, said dog being adapted'to engage an inclined end' surface on a block 91 secured to said bar 87, when the cocking rod is moved upwardly by a person stepping upon the scale platform. As soon as said og passes the block, the spring 88 acts to return the bar and swing the looper roll 85 out of the loop 84 formed in the paper strip, and when the person leaves the platform, permitting the cocking rod to descend, the dog 89 contact with the block 91, and pass said block.

Therefore each time the cocking bar 29 is lifted by weight on the platform, the looper is o erated to form a loop in the paper strip so t at when the feed rolls are turned as hereinafter described, this loop will supply the necessary length of strip for another ticket.

The two feed rolls 78 are simultaneously turned to 'feed the strip of paper. downward past the lateral edge of the printing wheel 22 after the printing has been completed, by means of a feed arm 92 which is secured at its lower end to a shaft 93 and secured to this shaft is an upwardly extending cocking arm 94 arranged to swing substantially in thev plane of the cocking rod 29 at the rear thereof. On the cocking rod 29 is an L-shaped dog or pawl 95 pivotally attached to the rod and held against turning in one direction by a stop pin 96 orf the rod engaging a tail of the dog, and on the cocking arm 94 is a cam plate 97 adapted to be engaged by the dog 95 on the cocking rod when said rod is raised by weight on the platform, said dog being thus brought into contact with the inclined edge of the plate during the upward movement of the rod, and forcing the cocking arm 94 to swing away from the cocking rod against the action of. a coiled. spring `98, to the position shown in Figsf' 3 and 4, in which position iso said cocking arm is held by means of a pi-voted dog. 99 engaging a hook 100 or notched projection on the arm. The turning of the cooking arm 94 in this manner each time the cooking rod 29 is raised by .weight on the platform, swings the feed arm 92 away from the feed rolls 78 and locks the feed arm in the position shownl in Figs. 3 and 4.

When the feed arm 92 is released by the release ofthe dog 99 as hereinafter described, the spring 98 will act with suiicient lforce to swing the arm toward the feed rolls 78 and turn said rolls through the medium of a pusher 101 pivotally attached to the upper end of the feed arm, engaging one of a series of pins 102 projecting laterally from one of the rolls 78 toward the other roll. As the roll turns,the engaged pin moves upward and just before the end of the stroke of the feed arm,

said pin passes out of engagement with saidpusher, but by this `time another of the pins has been engaged inv a notch 103 leading to a slot 104 formed inv the'side of the feed arm and due tothe configuration of this notch, the rollswill be rotated the exact desired distance/co feed out the desired length of ticket. Further movement ofthe feed arm 92 toward the feed rolls is permitted' by reason of the slot 104 and the entering of the pin into this'slot securely holds the feed rolls against turning and accurately positions the ticket. The turning movement of the feed rolls is resisted when the feed arm 92 is out of contact therewith or in its retractedv position, by a pawl 105 pivoted upon the supporting frame and held in yielding engage- I ment with the pins on the rolls by a spring 106. (Fig. 3). v Thefe'ed arm 92 passes through a slot in the knife slide 82 which slotis longer thanthe width of said arm, so that during the last end of the inward movement of the arm and after the ticket strip has been fed downward .r thereby and the printing has been completed as hereinafter described, said feed arm will come in contact with the inner end of'said slot and move the slide, projecting the knife 83 across the opening in the block 81 through which the ticket has been fed, and severing the completed ticket from the strip, permitting it to drop into the cup or pocket 59. The slide 82 isheld up against the block yieldingly by a spring pressed roller 82a.

It will be noted that the ticket strip is fed vertically ydownward past one side of the printing Wheel 22 and therefore theticket when severed therefrom --drops by, gravity.

Also any dirt or other matter accumulating upper ends upon a shaft 109 mounted on the frame above the feed rolls 78 and curved wall 74 with the arms arranged to swing at the ends of the rolls and with the head extending transversely of the rolls beneath the same to swing toward the printing wheel and force -thedepending end portion of the ticket strip toward the printing wheel and toward -aseries of date disks 110 rotatively supported upon a supporting plate 111 supported by the spider 32 spanningthe Weight printing wheel, said date disks being held in the posi- .tion to which they are adjusted by the operaan L-shaped pawl l113 pivotally attached to the rod and held against turning in one direction by the engagement of the tail' portion thereof with a stop pin 114 "on the rodbut free to turn in the opposite direction. This pawl normally projects laterally from the rod into the path ofa cam plate 115 secured to one of the arms 108 of the hammer so that upon upward movement of-the cooking rod caused by 'a person stepping upon the scale platform, this pawl 113 will engage an inclined edge of the plate-115-and force the arm to swing away from the rod, thus swinging the head 107 away. from the printing wheel 22 to the position shown in Fig. 4 where it will be yieldingly caught and held temporarily by the arm 116 which is pivotally attached at one end to\an upward extension 117 of the arms 108, the opposite end of said arm 116 being interposed between a ratchet wheel 118 vand a presser pawl 119 which is held down upon the arm 116 by a spring 120, the arm being provided with a tooth to engage said ratchet 'so that the same will be turned by the endwise movement 'of said arm as the hammer is swung, the frictional resistance to movement of the arm 116 between the pawl and ratchet being suiiicient .,.to holdy the hammer in the retracted position to which it is swung upon the upward movebn the slide as said slide reaches the limit of I 124 to keep thel ribbon under tension. The

ribbon by being passed around the hub of the 15 one directionby a stop pin 127 on the frame plate engaged, by a projection on the slide, and is guided in its movement by the screws 128 passing through slots in the slide for holding the slide in place. A pin 129 on the 2G slide is engaged by thearm 108 of the hammer when said hammer is swung by the pawl 113 as thecocking rod is raised by weight on the platform, and the slide is thus moved by the swinging of the hammer and the s ring 125 is put under tension thereby. The

slide 126 is held in the positionl shown in Fig. 4 and'to which it is moved upon upward movement of the cocking rod, thereby putting the spring 125 under tension, by means of a pawl 130, which engages over a tooth its movement when moved against the action of said spring.

To release the slide 126 at the proper time and permit the spring 125 to suddenly project the'slide against the hammer and swing it toward the printingwheel with suilicient force to cause it to strike the ticket and print thereon from the printing wheel and date disks, a pendant pawl 131 is pivotally attached at its upper end to the cooking rod 29 in a position so that when said rod is in its uppermost position, the lower end -of said pawl 131 will be in a position to engage the end of the pawl 130 and raise said last named pawl out of engagement with the slide- 126 when said pendant pawlis swung later- .ally by a pin 132 on 'the trip bar 36 coming in contact with an inclined side projection on said pendant pawl when said bar is released and falls, as previously described. By attachingl the pendant hamlner-releasing-pawl n 131 to the cooking rod 26, it will not be in a position tofengage and release the pawl 130 unless-there is weight on the platform, and therefore no ticket will be printed should the person step froml the platform.

When the slide 126'is released, the spring 125 acts, through the slide and pin 129 thereon, to impart a quick force to the hammer until the slide is stopped by-the stop pin 127 just before the hammer hits the ticket strip, the inertia of the hammer causing it to strike a hammer blow and rebound slightly, and

to prevent the hammer from vibrating and contacting the strip more than once, a pair of dogs 133 is pivoted upon the ends of a small supportingy shaft 134 extending across between the frame plates 31 with the contact upper ends of these dogs normally held in the path of lugs 135 on the ends of the hammer head 107, by a spring or springs 136 attached to these dogs (Figs. 2, 34 and 9). Therefore, when the hammer swings toward the ticket, it -is caught yieldingly at the end of this movement by these do'gs 133 engaging the lugs on the head and the spring resist-ance of the dogs willprevent the hammer from hittingthe ticket a second time and will, after the first blowfhas been delivered, hold the hammer away from the ticket sufficiently to permit the strip to be fed freely downward past the knife. n l

To release the cooking -arm94 and thus permit the spring 98 to swing the feed arm 92 and feed the ticket strip downward immediately after the hammer has been struck and printed the ticket, a second dog 137 is pivotally attached tothe tail'portion of one ofthe dogs 133 with its hooked end in the plane of the tail portion 138 of the'd'og 99 which catches and holds the cooking arm 94 in retracted position, and a stop pin 139 on the dog 133 limits the relative turning movement in one direction, of the two dogs 133 and 137, while a stop pin 140 on the frame plate engages beneath the tail of the dog 137 to normally hold the dog 133 with its hooked end in the path of the` lugpon the hammer and the hooked end of the dog 137 in a position to be raised by the turning ofthe dog 133 and hook the same over the long end of the dog 99` (see Fig'. 9). Therefore when the lug 135,on the hammer engages the dogv 133 near the end of the printing stroke of the hammer, .said dog 133 is turned upon its pivotal support, and by reason of the-pivotal support ofthe dog 137 on the tail portion of the dog` 133, said second or releasing dog 137 is raised, at the same time turning upon its pivot with its tail portion resting upon the stop pin 140, and its hooked end is thus` hooked over the tail of dog 99. The springs 136 will then act, immediately upon rebound of the hammer to turn the dogs to normal position and in so doing will pull down upon the tail 138of dog 99 and release the (rocking lThe releaseby a coin of the trip bar 36, thus rst,funlatches the slide 126 to actuate the hammer and print the ticket, and the vswinging of the hammer unlatches the feed this coin detecting mechanism is arranged to control the operation of the trip bar 36,and through the control of said bar, to control the entire operation of the machine.

The coin detecting mechanism includes a cam wheel 141 mounted upon a' suitable bracket 142 fixed on the casing frame and free to be rotated upon its supporting sha-ft 143, by means of a stud 144 on the Wheel engaging a horizontal slot 145 in a bracket 146 secured to the lower end of the trip bar 36. The bracket 146 also has a vertical slot 147 through which the shaft 143' extends to guide the lower end of the,` trip bar in its vertical movement. The coin chute 44 has a lower end section 148 which is pivotally supported intermediate itsends at4 149 on the bracket 142. On the lower end of the chute 148 is a roller 150 engaged in a cam slot in the cam wheel and at its upper end is a laterally extending tongue 151 adaptedto close the lower end `of the main chute Y44 when said chute section 148 is swung on its pivotal support with its upper end out of alignment with the main chute. Near the upper end of said chute 148 is an opening 152 in the side thereof through which a. coin in the chute is exposed, and directly belowthis opening is a spring stop member 153 having a laterally bent end to project through an opening in the side of the chute across the path of a coin passing down the chute, said spring stopI being normally in position blocking the chute but being deiiected and moved out of the path of the coin by a dog 154 to engage a projection on the sidel of the stop member when the chute is returned from its tilted position toward alignment with the main chute, said dog-being yieldingly held by a spring 155 in position to engage and operate the stop member.

. A horseshoe magnet 156 is secured upon an arm of the bracket 14,2 in such position that its pole piece will enter the opening 152 in the side of the chute when said chute is tilted, and pivoted intermediate its ends at 157 to the bracket, is a rocker arm 158 carrying a pin 159 held in laterally projected position by a spring 16() sleeved thereon, said pin being in a position to strike a coin at its center when such coin is within the chute opposite the opening 152 and the chute is swung or tilted laterally toward the magnet and pin. On the lower end of the rocker arm 158 is a roller 161 to engage in a cam groove in the side of the cam wheel 141 and Springs 166 and 167 are attached to the rocker arm 158 and pivoted chute 148 respectively, to normally hold the chute sec.- tion in alignment with the main chute and'to hold the rocker arm turned to project the pin 159 toward the chute.

When a coin is placed inthe main chute, it will irst iall upon the trip lever 42,

.thereby releasing the trip bar 36, and the of the stud 144, said wheel being turned in.' y

the direction of the arrow in Fig. 6. This rotation of the wheell immediately tilts or swings the chute 148 by the engagement of the roller 150 in the outwardly extending,v

portion 162 of the cam slot in the face of the wheel. The tilting of the chute brings the coin ,against thel pole piece of the magnet 156 and pin 159. If the coin is a good copper cent -adapted to operate the machine, it will not be held by the magnet but if it be a slug of another metal, themagnet will hold it and thus hold the chute in its tilted position -so that theroller 150 will travel along the peripheral portion 163 of the cam groove until it comes to the end of said groove, thus preventing further rotation of the wheel, and the fall of the trip bar to the limit of its stroke. The `trip har willthus be stoppedybefore the pin 132 engages and operates the pendant pawl 131 to unlatch the slide 126 and operate the other parts of the mechanism for printing and ,delivering the ticket. Should a slug in the form of a washer having a center hole', be inserted, the pin 159 instead of being stopped bycoming in Contact with the slug or coin, will pass through the hole in the slug, permitting the rocker arm carrying said pin, to rock toward the slug, thus moving the opposite end of said arm carrying the roller 161 outwardly into the peripheral cam groove 164 and further turning of the cam wheel will bring the roller into the end of said peripheral groove, thus stopping further turning of the vwheel and fall of the trip-bar 36, and preventing the operation of the ticket printing and delivery mechanism.

When a. good coin is inserted and the trip bar 36 falls, turning the cam wheel 141, the pivoted chute is first tilted by the roll 150 riding out in the slot 162. The magnet 156 does not hold, and the pin 159, coming in contact with the coin holds the arm 158 against rocking on -its pivot and the rollerl to enter the' inwardly extending branch of the cam slot and thus rock the chute back to normal position in alignment with the main chute, there beingno hindrance to such return movement of the chute due to the fact that the coin is a good one, and lthe v length of this branch slot 165 is such as to permit the ull downward movement of the trip bar 36, which `full movement will operateas previously described. During the return of the chute 148 into alignment with the main chute, the dog 154 engages the projection on thel stop member 153 and springs it outwardly, permitting the tested coin to pass on down the chute.

With this arrangement, the scale platform is never locked down but is held down by the weight of a person thereon, so that as soon as he steps oif it rises, permitting the cocking rod to fall therewith, and thereafter said rod may be moved independentlyof the latching up and ticket printing and delivery mechanisms, thus insuring against breakage and undue wear of the parts by stepping on and off the platform without inserting arcoin to operate the machine.`

Ease of operation is .also secured by the present arrangement, as heavy Weights are not employed to furnish the necessary power for operating the ticket printing and delivery mechanisms, and by forming a loop in the paper strip, accuracy of feeding is secured and tearing of the strip is prevented. The present arrangement also provides for the actuatinr of the'ticket printing hammer by means of a slide operated by energy stored in a spring, thus providing a quick hammer blow to insure clear printing andthe release of the feeding mechanism is also operated by a spring which is effected by the operation of the hammer, insuring proper timing.

Obviously changes may be made in the construction and arrangement of theparts as shown, without departing from the spirit of the invention, and I do not therefore limit myself except as specifically set forth in certain of the claims, to the particular construction shown.-

Having thus fully described my invention `what I claim is: f

1. In a machine of the character described,

Vthe combination of a weight printing wheel,

on the platform, and coin controlled meansfor controlling the operation of said releasing means.

2. In a machine of the character described, the combination of Ya weight printin wheel, a weighing platform, means operate by said platform for positioning said printing wheel, a freely movable impression member, energy storing means and including a member projected by said energy storing means to' move blow, and coin controlled means for releasing said'projected member.

3. In a machine of the character described, the combination of a weight printing wheel,

a weighing platform, means operated by said platform for positioning said printing wheel, an impression hammer freely swingable t0- ward the lateral edge of said printing wheel, energy storing means including a proj ectable member for swingingl said hammer, means operated by said platform for operating said energy storing means, means for locking said energy storing means, means for feeding tickets to be printed, downwardly between said hammer and wheel7 and means for releasing said energy storing means.

4. In a machine of the character described, the combination of a weight printing wheel, a weighing platform, means operated by saidA platform for positioning said printing wheel, an impression hammer freely swingable toward said wheel, means independent of said hammer for imparting a swinging mvement thereto, saidl means including a spring, means operated by said platform A for putting said spring under tension and locking means for holding said spring under tension,

coin controlled means for releasing said locking means, and hammer controlling means for preventing the hammer from delivering more than a single blow.

5. In a machine of the character described, the combination of a weight printing wheel, a weighing platform, means operated by said platform for positioning said wheel, an impression member projectable toward said wheel, means for feeding a ticket strip between said wheel and impression member, energy storage means including means operated by said platform for operating said means -to store energy for operatingsaid impression member, locking means for said storage means, coin controlled means for releasing said locking means', ticket strip feeding means operating in timed relation to said impression means, .ticket strip severing means, energy storage means foroperating said severing means, and means released by the operation of s aid impression member for releasing said energy storage means for operating said severing means.

6. In a machine of the character described, the combination of a weight printing wheel, a weighingplatform, means operated by said platform for positioning said wheel, an iinpression memberprojectable toward said wheel, means for feeding a ticket strip between said wheel and impressionmember, energy storage means for operating said impression member, platform operated means for imparting motion to said stoi'age means .to store energy, locking means for said storage means, coin controlled means for releasmg saidilockmg means, ticket strip severing meansenergy storage means operated tostore energy by the koperation of said plat- 'form and for operating said feeding means and said severing means, and means released by the operation of said impression member for releasing said energy storage means for operating said severing and feeding means.

7. In amalohine of the character described, the combination of a Weight printing Wheel, a. Weighing platform, means operated by said platform for positioning said wheel, an impression member projectable toward said Wheel, means' for feeding a ticket strip between said Wheel and impression member, energy storage means for operating said impression member, means operated by said platform for ,transmitting motion therefrom to operate'said storage means to store energy, locking means for said storage means to hold the same in energy storing position, coin controlled means for releasing said locking means, ticket strip severing means, ticket strip feedinginstrumentalities operative to first feed the strip and then operate the severing means, and energy storagemeansfor t operating said feeding instrumentalities, re-

leased by tlie operation of said impression member.

8. In arma'chine of the character described, the combination ofa Weight printing Wheel, a weighing platform, means operated by the platform for positioning said printing Wheel, means for making an impression from said Wheel, a cooking rod operated by said platform, energy storing means for operating said impression means, means operated by said cooking rod, for transmitting motion therefrom to operate said storage means, locking and releasing means for said energy storing means, and a trip bar for releasing said energy storing means, and coin controlled means for locking and releasing said trip bar.

9. In a coin controlled Weight printing machine including a printing Wheel, a Weighing platform, means yoperated by the platform for positioning the printing Wheel, an impression member to cooperate with said Wheel in printing a ticket, ticket feeding means, a" cooking rod operated by said platform, energy storing means including locking and releasing mechanism therefor and operated by said rod in one direction of its movement to store energy and movable inde1 pendently of said energy storing means in the opposite direction, a trip bar operated in one direction by said cooking rod, and coin controlled trip mechanism for holding said bar in the position to which it is moved by said cooking rod, said trip barrbeing operative when released by said trip mechanism, to release said energy storing means to operate said impression member and ticket feeding` means. c

10. In a coin controlled Weight printing machine, including a printing Wheel, a weighing platform, means operated by the platform f or positioning the printing Wheel, an impression member to cooperate with said Wheel in printing a ticket, means for feeding aticket into printing position, a spring for storing energy, a member for placing and holding said spring under tension, looking means for said member, a oookin rod for moving said member to tension said spring, a trip tbar operated by said cooking rod for releasing said member tov actuate said impression member When said bar is released, and coin controlled means for releasing said trip bar. v

11. In a coin controlled Weight printing machine, including a printing Wheel,` a Weighing platform, means operated by the platform for positioning the printing Wheel,

an impression member to cooperate with said wheel in printing a ticket, means for feeding a ticket into printing position, a spring for storing energy, a member for placing and holding said spring under tension, locking means for said holding member, a spring for storing energy to operate said ticket feeding means, means for holding said spring in energy storing position and releasing the same, means operated by the release of said spring holding member to release said spring for s operating said feeding means, a cooking rod operated by said platform and operative in one direction of its movement to place said springs under tension, a trip bar operated in one direction by said cooking rod and free to move in the opposite direction independently of said rod, means positioned by said cooking rod for releasing said spring holding member and operated by independent movement of said trip bar, and coin controlled mechanism for releasing said trip bar.

12. In a coin controlled Weight printing machine, including a printing Wheel, a Weighing platform, means operated by the platform for positioning the printing Wheel, an impression hammer pivotally supported for free Swingin movement toward' said `Wheel to print a ticket therefrom, means for feeding a ticket into printing position, a hammer actuating member, a spring to move said member in one direction, means for holding said actuating memberwith said spring under tension, means for limiting the movement of said actuating member in the direction in which it is moved by said spring, a cooking rod operated by said platform to move said actuating member and put said spring under tension, a member positioned by said cooking rod for engaging said means for holding the actuating member and releasing the same, a trip bar moved in one direction by said cooking rod and adapted llU 13. In la coin controlled Vweight printing machine including a printing wheel, a weighing platform, means operated by the platform for positioning the printing wheel, an

impression member for printing a ticket from said wheel, means for operating said member, ticket feeding mechanism for feed` ing tickets into prin/ting position and including a feed roll anda pivoted feed arm to turn said roll, a spring to store power for swinging said arm in one direction and turning said roll, releasable means for holding said arm with said spring under tension, said means being releasable by said impression member, a cooking rod operated by said plat'- form to Swing said feed arm and put said spring under tension, a trip bar operated in one direction by said cooking rod, means for holding and releasing said means for operating said impression member, said trip bar being operative, when released, to release said means for operating said impression member, and coin controlled means for holding 'and releasing lsaid trip bar.

14. In a coin controlled weight printing machine including a printing wheel, a weighing platform, means operated by the platform for positioning the printing wheel, an impression member to cooperate with said wheel in printing a ticket, mechanism for feeding a ticket strip into position for printing a ticket at an end thereof', said feeding mechanism including a spring for storing power to operate said mechanism and means for holding said sprin under tension and releasing the same, mec anism for operating said impression; .member including a spring y for storing power to operate said mechanism and means for holding said spring under tension and releasing the same, a coin chute, a deilector in said chute normally positioned to return to the operator, a coin inserted in said chute, a cooking rod`operated by said platform when weight is applied thereto for placing said springs under tension, means 'for operating said deilector to open said chute, saidmeans being operated by movement of said cooking rod, a trip bar posi-- tioned by the movement of said cooking rod inone direction and operative when released,

to release said means for holding said spring for operating the impression member operat- ,ing mechanism, said impression member being operatlve Whenoperated, to release sind means for holding said spring for operating said feeding mechanism, said trip bar being also operative when released, to release said deflector operating means' and permit the deflector to return to normal position, and coin controlled latch mechanism for holding said mannersI 15. In a coin controlled weight printingl machine as characterized in claim 14 and including delay means connected to said trip bar for delaying its movement when released by said coin controlled latch mechanism.

16. In a coin controlled weight printing machine including a printing wheel. a weighing platform, means operated by said platform for positioning said wheel, an impression member, feeding mechanism for feeding tickets into position, power storing means operated by a movement of said platform to store power for operating said impression member, locking and releasing mgeans for said power storing means. a trip bar operative when released, to release said locking and releasing means, coin controlled Vlatch mechanism for holding and releasing said trip bar. and coin controlled mechanism for controlling the movement of said trip bar after the release of said bar by said latch mechanism. Y

17. In a coin controlled weight printing machine, including .a printing wheel, a

weighing platform. means operated by said i platform for positioning said wheeL'an impression member, feeding mechanism for feeding tickets into printing position. a cocking rod operated in onedirection by said platform, a power storing spring operated by said cooking rod` to store power for operating said impression member, locking and releasing means for-said spring. a trip bar raised bysaid cooking rod and operative to release said power storing means upon downward .movement of said bar, coin controlled latch mechanism to hold said trip bar in raised position and release the same when operated by a coin, and means for controlling the downward' movement of said trip bar when released. said means including coin testing mechanism, and a member controlled by said testing mechanism and operatively connected to said trip bar for controlling the downward movement of said bar.-

18. In a coincontrolled weight printing Y machine including a. printing wheel, a weighing platform. means operated by said platform for positioning said wheel, an impression member, feeding mechanism for s feeding tickets into printing position, a cockwhen reieased, said means including a rocker arm, coin testing means operated by said arm, a cam wheel operatively engaged with and rotated hy said trip bar and engaged with said arm to be controlled by the movement of said arm and limit the downward move-A ment of said trip bar. v

19. ina coin controiiedweight printing machine including a printing wheel, a weighing platform, means operated by said piat- `form for positioning said wheel, an impression member, feeding mechanism for feeding tickets into printing position, a .cooking rod operated in one direction hy said platform, a power storing spring operated by said cocking rod to store power for operating said impression member, locking and releasing means for said spring, a trip har raised hy said cooking rod and operative to releasesaid power storing means upon `downward movement of said bar, coin controlled latch mechanism to hold said strip bar in raised position and reiease the Same when operated by a coin, and means for controlling the downward movement of said trip' har when released, said means inciuding'a rocker arm, coin testing means operated by said arm, a cam wheel having cam grooves therein, a roller on the lower end of said trip bar to engage one of said grooves, and a roller on said rocker arm engaging another of said grooves, said last named groove being arranged to provideV a stop for said arm in one position of the arm and to permit further rotation of the cam wheel in another position of said `arm and descent of said trip rod to the full limit of its movement for releasing said power storing means.

In testimony whereof I aix my signature. HARRY S. BENJAMN.

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