US1338240A - Automatic conveyer and leer - Google Patents

Description

.w. s. MAYERs. AUTOMATIC CIONVEYER AND LEER.

rammed m1211920'.

APPL1CAT|0N FILED DEC. Il, 19H,

sHr-:ETs-sum 1.

wxNEss WLS. MAYERS.

AUTOMATIC'CONVEYER AND LEER.

l y W////////// ,/////////////////V/////////////a ,/H/H//O//f//f Q llll WITNESSES www# WI S. MAYEHS.' AUTOMATIC CONVEYER AND LEER, APPLICATION FILED Dic. II, 1917.

Patented Apr. 27, 1920.

5 SHEETS-SHEET 3.

ImzI

` I NVQENTOR W. S. MAYERS.

AUTOMATIC CONVEYER AND LEER.

11,338,240. APPLlATlON FILED DEC. Il, 1917.

5 SHE'ETSSHEET 4.`

3yr/nemer.

Fig. 5

F y UDMA TF g m W. S. MAYERS.

AUTOMATIC CONVEYER AND LEER.

APPLICATION FILED DEC. L1, 1917.

Patented Apr., 27, 1920.

5 SHEETS-SHEET 5.

|NVENTR WITNESSES MJ/alaaf 35 partial sectional View through the feeding WILBUR. s. MAYERS, lor FAIRMONT, WEST vInGINIA.

AUTOMATIC CONVEYER AND LEER.

l. T all whom t may concern: i

Be it known that I, WILBUR S. MAYERs, a citizen of the United States, residing at Fairmont, in the county of Marion and lState of lVest Virginia, have invented new and useful Improvements in Automatic Conveyer `and Leers, of which the following is a specification; .4

My invention relates to annealing fur naces or leers for use kin glass manufacturing plants for such articles as tumblers,.

packing jars, certain classes of bottles and table-ware. Heretofore the ,annealin of these articles has been accomplishe in special furnaces requiring a considerable amount of fuel for reheatlng the ware and several hours for the operation. In my device the ware istaken hot from the molds and quickly placed in a closed and heat-insulated chamber thus avoiding thenecessity of reheating, and greatly reducing the time and cost required for annealing. Furthermore there areproduced better results than are possible with the leers now in use owing to the fact that the internal stresses producedby the non-uniform shrinkage due to the rapid coolingof the'ware are avoided.

" In the accompanying drawings,.forming a a part of 'these specifications, and in which similar characters of reference indicate like parts throughout the several views, Figure 1 is apartial side view of the operating mechanism with the side wall broken away showing a vertical longitudinal -sect'ion through the receiving vend of theleer and a chute. Fig. 2 is a horizontal section through .f the`receiving end on the line 2 3 lof Fig.

1. Fig. 3 is an end view of the receiving end broken away in section at the cullet chl-ite.l Fig. 4 is a vertical section through a part of the operating mechanism on the line 4-f4 of F'ig. 5. Fig. 5 is a vertical secl tion 7throughthesame parts on the line 5-5 of Fig. 4. Fig. F6 is a horizontal secJV tion on the line 6-6 of Fig. 4. Fig. 7 shows thenupper end of the hollow, slide and the rocker-shaft driving arm. Fig 8 is a perspective of a section of the multiple chute and deflectors. Fig 9 is alongitudinal section through; the outer -ends ofthe three j conveyershafts showing the water cooling device. valve in the feeding chute. Fig. 11 is a side 10 is a section through the view of the multiple stop, chute and deflectors. F 12 is a plan of the single stop and Specification of Letters Patent.

made rather .loose Patented Apr. 27, 1920.

Application filed December 11, 1917. Serial No. 206,666.

deflector at theend of the feeding chute. Fig. 13 is a side view of the feeding chute,

delector and stop and a section of the crossconveyer.` Fig. 14 shows the reverse side of the timer-disk from'that shown in Fig. 5, l'

. and Fig. 15 shows aside view of the entire leer with the feeding mechanism omitted.

rI"he main body of the 'leer consists of the f lsection 2 have less heat-insulating properties than those of chamber l; those of section 3 less thanv section 2 and so on in any number of sections, gradually increasing the cooling by radiation as the discharge end of the leer is reached In order to hasten the cooling when desirable the dampers l5, 6, in the vent `pipes 7, 8, are opened more or less, allowing the heated air to escape directly at these points.

The cooling sections 2, `3 and 4 are just large enough to house the upper run of the main conve er and the largest size v'vare to be annealer so,that the radiating surfaces may be kept at the minimum. 'Ihe receiv-A ing-chamber walls rest directly uponthe floor and the cooling sections are carried by the steel angle bars 9, 9a and the vcolumns 10, 11 and 12, 1n pairs.

The bottom member of the conveyer-seal 13, under the rear end wall of thereceivingchamben extends between the sidel walls. The top of this casting just touches the it. In order to prevent' the. cold air from entering the chamber over the inclosed conf veyer run the top member ofthe conveyerseal 14 is-made to closely t over the main conveyer bars and chains. This casting, ex-

tending between the side 4walls, has a smallF vertical travel and lis loosely fitted under the .rear end wall of the chamber. It 'rides upon the conveyer and the flange 14X," extending its entire. length, seals the air space between it and the end Wall-and retains it in place against the friction with the mainconveyer. Both the castings 13 and v1.4 are fitting and easily removable.

The metal feeding-chute 15 extends tion joins the outer section 15a at-thev joint 16 and the outer section may be extended to any desired distance to a pointv near the mold from which the ware .is transferred to the chute either by hand or by suitable mechanism. The hinge 1:7 at the joint provides for the upward lswinging of the outer section but it visevident that the hinge maybe placed at the bottom or on. the sides so that the chute section may swing in any direction. Y

At the bottom /of'the receiving-chamber is the combustion-chamber 18 separated from the upper part of the chamber by the corrugated cast iron muffle-plate '19. This plate .fills the entire horizontal area of the receiving-chamber with the exception'of the recess or throat20 in the front end wall 21.

' The curved end of the muflle plate terminates a shortydistance4 above the bottoni of the throat and close to the bottoln of the cross-conveyer. o .r l

The cap 22 of the receiving-chamber may be swung upward upon the hinge 23 to permit/` access to the chamber. The `sand seal 24..'consists of a marginal bead around the bottomof the cap extending downward and into a corresponding groove in the walls f land stationary` cover of the chamber. The

bead does not fillthe groove and the inter- 'l Vening space, is filled with sand which wall,

makes a heat-tight joint betweenl the members. The eye bolt 25 provides an attachment for lifting the cap 22 on its hinges.

The gas burner -26 is placed under the rear end of the Inutile-plate near the casting 13 and its mixer 27 outside of the rear their ,connecting pipe extending through a hole in thev casting. Ignition of the gas is made through the hole 27x. purpose of the burner is primarily to -pro main conveyer by radiation from the muffleplate, as hot glassware is cracked or checked by contact with cold metal. Iktis further useful as a vmeans of making up for-heat losses by radiation and to retard the cooling of certain classes of ware. It is apparent that,v the cross-conveyer will also be heated both by radiation from the muffleplate and by direct contact with the hot p gases, as well as by the hot ware. T he chute sections 15, 15a, will also beheated by the passage of a part of the hot gases through them and by direct icontact with the hot Ware.

The mainj-conveyer consists of a serie-s of thin metal bars 2S attached to the links of the endless chains 29, 29%, these chains krunning upon suitable sprocket wheels 30,

T heV close fitting flanges 4.5, 4G and between these 31 in adjacent pairs and tightly keyed to their respective shafts. The ylength of the conveyer bars as well as the width of the leer are determined by the diameter of the articles to be annealed andthe number of pieces in each cross-row. Fig. 2 shows nine pieces in each cross-rowk but it is evident that this number may be increased or diminished without affecting the working of the mechanism as hereinafter described. It is also evident that the length of the maincofnveyer and cooling sections maylbe likewise increased or diminished. The upper or loaded run of the conveyer is supported by the angles 32, 32Il and the lower or empty run upon similar angles 33, 33a. The shaft 34, Fig. 15, passes through' the pair of sprocket wheels 31 and suitable bearings and isI geared to a motorl 35 through the worm 3G, worm-wheel 37 and 85 a train of spur gears. The shaft 3S passes through the walls of the receivingfchai'nber in suitable bearings 39, 39 and through' the sprocket wheels 3f). The bearings are y partly, and may be entirely, outside of the ,9-0 walls in order that they may not .be sub- 1 jected to the heat therein. The sprocket wheels are maintained in continuous motion, vclockwise in direction, with lreference to 'Figs 1 and 15.

- The endsof the shaft 38 as wellas those of the cross-conveyer shafts 40, 40a are fitted with water cooling devices shown in Fig.

9. These shafts are end bored to a depth equal to their extension beyond the inside-100 line of the receiving-chamber walls. Into this bore 41 extends the tube 42 whose external diametertas .slightly less than that of the bore 41. Outside of the tube 42 and within the counterbore at the extreme end of the shaft is the nipple 43 terminating Jn the stuffing-box 44 around the tube 42. On the nipple 43 between the stuffing-box and the end of the shaft are two integral or flanges a series of holes 43X are drilled through the walls of the nipple. These anges are looselyin'closed in the splitl casing- 47. The tube 42 is stationary and is connected to a water supply pipe. The casing 47 is alsov stationary and is connect-ed to a waste pipe. The nipple 43 'is tightly threaded into the counterbore at the end of the shaft and therefore revolves with it. It will be seen that the water entering the tube 42 discharges at its inner end into the bore 4'1, then reversing its direction and .passing through the annular space between the tube and the bore, it is discharged, through the holes in the nipple 43 into the casing 457 and finally to the waste pipe.

The cross-Conveyer 4S is similar in design to the main-conveyer except that its width is but slightly greater`v than a single piece of ware and its length between shaft centers l bearings 51, 52 and 51a, 52, respectively,

and, passing throughI the end wall 21, they are keyed tothe sprocket wheels 59, 50a. The conveyer head shaft 40 carries in ad- I dition the timing-disk 53, the ratchet- wheels 54, 55, 56, all keyed thereto, and the pawlcarrier 57 loosely fitted. The pawls 54a, 55a, 56a-engage respectively the ratchets 54, 55, 56, any of which may be independently thrown out` of engagement; The pin 61 is loose in the connecting-rod 62, arid the l pawls, and tightly fitted in the pawl-carrier. The oscillatory motion of the pawlcarrier and pawls is continuous with a fixed amplitude, and the travel of the pawls at their bearing points upon the ratchets is slightly greater than the pitch of the largest tooth and less than the arc subtended by two of the'smallest adjacent teeth. It will be observed thatnthe shaft 40 and sprocket wheel 50 will, at each forward` stroke of the. pawl-carrier,` be\turned through an angle equal to 360" divided bythe number of teeth in the ratchetengaged. The intermittent movements of the cross-conveyer, caused by the engagement of one of the ratchets by its pawl, being slightly greater than the greatest diameter of each piece of ware deposited upon it, Contact between the pieces of ware and cohesion between them are avoided.

The drive shaft 63 is journaled. in the bearing 64 and is keyed in the cam 65 and the bevel gear 66. This gear also serves as a crank-disk and the crank-pin 67 tightly fitted therein, is journaled in the lower end of the connecting-rod 62, the drivenshaft 68 isjournaled in the bearings 69, 70 and carriesthe bevel gear 71 and the crankdisk72 bothtightly keyed.' The crank-pin 7 3 in the crank-disk 72 is-journaled in the lower end of the connecting-rod 4.

The vertical guide 7 5. 'is integral with the base plate' 76 and base plate flange 763 andV is planed inside to receive the hollow slide 77. The inside of the hollow slide is planed to receive the inneror solid slide 7 8.` The hollow slide 4has in its upper end the two longitudinal vertical slots 79, 7 9a each haV- ing a length slightly greater` than the vertical travel of theV connecting-rod 74, and near the top on one side is the ,projecting l lug 80 carrying the tightly fitting pin 81,

Fig. 7. In a slot 7 7 X in the top of the hollow slide is pivoted the latch 82 on the pin 83. This latch has a downward extending arm 821 terminating in a lhook and a horizontal arm 82X' which, inits uppermost position, occupies 'at certain times a notch 84 in thel edge of the vtiming-disk The bent flat spring 82a presses the hook into'the slot in the slide-7 8 when the arm 82pv is opposite the pin 58a which is screwed tight in the timingdisk. i Vhen, due to the force of gravity, the dog hangs in theyertical position as shown in the dotted lines in F ig. 14, its lower face is tangential to the edge of the timing-disk and it is directly over the notch 84. It swings freely on its pivot and is limited in its are of travel by the studs 59, 60. The inner slide 78 is slotted at the top to receive at certainv times thehook 82". The pin 85 passes tightly through the inner slide at the top of th'e slot so that its under side is engaged at stated intervals with the hook.- This pin also passes loosely through the vertical slots 79, 7 9a in the hollow slide 77 .and extends into the top of the connectingr-rod 74, loosel fitted thereto.

,he rocker-sha t drivin arm 86 has a U shaped swinging end whlch envelops theo pin 81 and its other end is keyed to the rocker-shaft 87 which! is rotatably supported in the bearings 88, 89. ,The pusherarms 90, 91 are keyed to the rocker-shaft and terminate at their upper ends in segmental spur gears 90", 91". Meshing into these gears are the rack- rods 92, 93. These rodsextendinto the end wall 21 and are riveted to the integral' multiple pusher-ban 94. The pusher-bar and rack-rods rest upon and are guided by the metal frame 95 extending to "the inside of the wall 21 and cut away over the recess 20.' -The top section is recessed over the rack-rods and has a close sliding fit with these rods- 'and the pusher-bar on' the edge flush with `the throat v 20. It is inclinedupward lfrom this edge a sufficient amount to permit the rods to be raised so that their teeth may clear those of the segmental gears 90", 91X. The pusher- I suicient to push the cross-row of glasses off the conveyer'48 at certain intervals.

. The multiple'chute 96 is preferably made in an integra-l casting4 and-is fixed at an incline of'about 16 degreesl from the horizontal. The deflectors 97 at the bottom of each chute section consist of short segments cut from the walls of round tubes whose internal diameters are slightly greater than that of the pieces of ware which pass over them. The axes of the deflectors are set -at an angle of 4about 45 degrees from the horizontal and their bottoms rest'upon the metal bars of the main conveyer 28. The` under side of the;

chute at its upper' end is provided with lugs 9S, 9S and between these the lixed rod 99 extends across the leer and forms the upper support of the chute. 0n the top surface of the chute the raised guides 100, spaced according to the number and width of the pieces of ware, prevent them from touching one another whilesliding by gravity down the chute, and deposit them upon the main conveyer in the proper spacing. ln order that the pieces may not touch one another after dropping t`o the main-conveyer the guides 100 have extensions 100x carried to a point beyond the deflectors and directly under thestriking edge of the multiple-stop 101 and downward to the level of the bottoms of the deflectors. yIn case the ware is annealed with the largest diameters up these guide extensions are carried upward to the stop 101. lVhen tumblers of a 'different 'size are to be annealed the integral multiplechute is lifted out of position and removed and another is inserted in which the raised guides and deflectors are spaced according y top of the tumblers T, or other articles,

strike the multiple stop 101 as shown by the dotted lines in'Fig. 1.- The bottoms of the tumblers-are then carried on by their inertia and. clearing the concave end of each section, they lare righted to theirv vertical posiltion and, guided by the deflectors, drop to the main conveyer so that they will now pass under the stop.

The square or rectangularl metal bar 102 extends yacross the leer chamber and .is firmly embedded in the side walls. The multiple-stop 101 is cast/in one piece in the form shown in Fig. 11 and hooks over the bar 102 so that its striking edge is in the proper position. This striking edge is fluted as shown in Fig-2 and is spaced and designed so that it occupies the correct position with reference to the size of the tumbler and the end ot the multiple-chute. lVhen tum,- blers ofa different size lare to be annealed the stop is lifted from the bar and another stop inserted in which the striking edge will be in the correct position for that size of tumbler and the number and spacing of the fluted pockets will correspond to that slze of ware. The height of the bar 102 will be such that tumblers of the maximum height, as shown in Fig. 1, will pass under it and when smaller sizes are to be annealed the striking edge will be lower and farther from the b ar to suitlthe height and diameter l of the various sizes.

The bottom of chute 15terminates in a concave end with a deflector 103 similar to those of the multiple-chute 96 above described. The stop 104 is placed in the path of the top of the descending tumbler and is hel`d in position by the stud 105 which cause the roller 109 to bear firmly upon the passes through a hole in the side wall and is clamped thereto by means of the flanged nut 106. The hole is larger than the stud so that vertical and horizontal adjustment of the stop is obtained. The action of the tumbler uponstriking the stop is precisely similar to that described in relation to 'the multiple-chute 96 and stop 101, and'it is obvious that articles with slanting sides, such as tumblers, will take the positions as above described, either when they descend with their open ends up or inverted as Vshown in Figs. 1 and 11. It is also evident that any piece of ware which will maintain its stability upon the chute, such as shallow bottles, will take similar positions. The arm 10-1X is attached to the stop 104 and extends downward to a point slightly'above the top of the cross-conveyer. rl`he purpose of'this arm is to prevent the tumbler from receding from the deflector 103 when it drops to the cross-conveyer.

The stops 101, 104 are concaved on their striking edges to conform to the curved surface of the pieces of warein order to lessen any tendency to distort or fracture the ware by the impact. Freedom from distortion -is furthermore insured by virtue of the well known inherent qualities of glass, which, though hot enough to be luminous and pliant and yielding to steady pressure of definite duration, resists sudden blows and may even be fractured under severe blows.

The hollow shaft 107 is rotatably mounted on the rocker-shaft 87. On one end of the hollow shaft is the downward extending arm 108 and onfthe swinging end of this arm is the roller 109 which engages the wearing surface of the cam 65. On the other end of the hollow shaft the arm 110 extends` upward and terminates in the duplex segmental bevel gear 111. The shafts in the timing valve 112, 112, Fig. 10, are journaled in bearings in the top casing and the bottom of the chute l5 and are keyed .to the segmental bevel gears 113, 113 and end to the arm 110 andthe other end is attached to a lsuitable fixture in the end .wall Thespring has a tension sufficient to cam 65 and to operate the valve wings 114, 114a through the gears 111, 113, 113a when the roller enters and leaves the depression in the wearing face of the cam.

The bottom of the vertically swinging chute 15t extends between the -side walls of 1 chute 15 to a .point nearthe bearings of shafts 112, 112a so that when the swinging section is raised any ware which mayhave `cullet, after which it is lowered to working Vposition and normal operation 1s resumed.

T he side 15x of the chute 15 extends to a point near the stop 104 for the purpose of lpreventing the tumbler from bouncing toward the adjacent end of the cross-conveyer after droppingl from the chute.

The culletchute 115 extends from the discharge end of the cross-conveyer 48 through the side wall. The small `metal door 116 swings upon 'the' horizontal hinges 117, 117a at the top. and closes by gravity. This chute is so placed that any ware falling upon it from the end of the cross-conveyer is discharged by gravity through the small door which is lifted by the ware passing through it.

Pressed glassware is. commonly taken from the molds at a .temperature which causes the pieces to cohere when brought together and it is therefore essential that contact between two or more pieces be avoided This 60ndition is attained by means of the mechan ism above described. 1

The ware is taken from the molds either by hand or by'any form of automatic takeout device and is placed upon the upper end of the chute 15a. Upon being released it slides downy the chute until it strikesZ the timing-valve wings 114, 114a while they are in the position shown in the dotted linesin Fig. 10. Atthis instant the depression in thecam 65 reaches the roller 109 and actin under the tension ofthe spring 110il the ho low shaft makes a' partial turn, thereby shifting the valve 'wirf s to the position .v 4shown in solid line sectlon. .The piece of ware, following the movement of the wings,

passes to the chutev section 15 and slides to the stop 104 where it drops into position on the cross-conveyer as above described.

The drive shaft 63 makes onel revolution in the interval of time required to produce vone piece of ware and may be connectedto an independent motor through gearing,

properly synchronized,l but where motor driven presses are employed this shaft is preferably connected to arotating member of the machine and permanently synchronized through proper gearing. he

movements vof vthe'pawllc'arrier 57, as well,I

as the valve wings, are vmade in cycles corresponding in frequency to the revolutions of the drive shaft though thelr action 1s not simultaneous. The cam is set so that the valve wings are in the dotted line position when the ware reaches the bottom of the chute 15a at which time the wings are shifted. At a certain subsequent interval'of time, corresponding. to the tlme required for the ware tol reach the cross-conveyer in the' manner above described, a predetermined one of the pawls enga es a tooth of its corresponding ratchet an vthe upper run of the cross-conveyer is moved away from the chute through a space equal to the largest p a multiple ofthe number in its companion gear 7l, and their ratio' is preferably 2 to 1. At this ratio the crank-disk 72 will revolve twice foreach piece of'ware produced and the pusher-bar will be thrust forward and withdrawn without\finterfering withA the first piece of ware on the next cross-row.K The point of one tooth in each of the ratch. ets is set in the same radial plane at a point diametrically opposite the center of lthe notch 84 in the timing-disk 53. The timingdisk is set at such a position on its shaft that its notch 84 exactly registers with the arm 82x of the latch v82 atthe instant when the -cross-conveyer stops, after having received the connecting rod 74, carrying with it the inner `and solid slide 78 and pin 85,.wi11

have reached its highest point of travel.'4 The latch arms will nowbe in the positions shown in the dotted lines, Fig. 4, and, upon -descending, the pin 85v will engage .the hook 82"., It will be seen that when this enl agen ment takes place the latch is drawn own and with it'the hollow slide 77, the lfixed pin 81 and the swinging end of the rocker-shaftl arm 86. Upon the upward or return stroke 'the pin 85, lwhich'is now atthe top of the slots 79, 79, will carry the hollow slide up to its highest position and ,with it the end of the rocker-shaft arm. When the latch leaves the notchvin the timing-disk on the downward stroke the dog 58 falls to the ver- `tical position, thus closing the notch, and at the top of the succeeding upward stroke the. arm 822c Yis `'depressed by the dogl and the 2'5 ner above described. If, from anycause,

l hook thrown out of engagement with the pin 85. The hook is likewise thrown out of engagement bythe edge of the timing-disk at every stroke exceptJ the one which occurs while the arm 82x is in the notch. disk rotates to the position shown in Fig. 5 the arm 82x engages the lug 58X, as shown in the dotted' lines in Fig. l-l, thus preventing the dog from swinging in and prematurely closing the notch,but it is evident that the notch will be closed at the next 4stroke as above described. The slots 79, T9a in the any piece of ware should, in dropping from chute 15, rest upon the cross-conveyer out of its proper space the fluted edge of the pusher-bar will correct such displacement,

and in a like manner the fluted edge of the stops 101 and 104 maintain the proper spacingof the pieces.

he motor 35 is so geared to 'the' mainconveyer drive shaft thatI the horizontal runs of this conveyer travel a distance equal to the largest diameter of the pieces of ware lbeing annealed, plus a predetermined clearance, in the period of time between the actuations of the pusher-bar. In order to vary 4the speed of the niain-conveyer to suit. the rate of production and size of the ware the `motor is provided with any .of the well know speed regulators.

Yhenltumblers or such like which are deposited 1n the outer end of the swinging chute come in contact with the timing-valve` wings 114, 1143V they are held at this point for a predetermined interval of time, depending upon the regularity and rate of production, this time interval corresponding to the maximum variation in the intervals betweenv the deposits of the pieces in the chute.

For example,y if the wings are actuated atl intervalsof three seconds and if 'there is a `maximum interval of four seconds between the deposlts of any ot the tumblers. the- Wings will be set to retard each tumbler one second, based upon the regular time for such deposits. Thus it will be seen that the tumblers willleave the valve at regular i'ntervals even if deposited in the chute out of time, Within certain limits. In case that two or more pleces of hot ware are placed in the chute before the valve is actuated through yhen the a complete 'cycle theylwill cohere and can not pass through it. No damage to the wings and other connected mechanism will result however as the inward or feeding-in stroke of the wings gets its force from the tension of the yspring i103. Should a piece of ware lodge in the position shown in solid line below the wings, as shown in Fig. 10l` it will be forced outward in the chute by the wings, positively driven, and the mechanism cannot in this case be damaged. It is obvious that the chute sections 15, 15 may. if desirable, be located at the opposite side of the receiving-chamber, as would be shown if all the `drawings were reversed as they would appear ifvseen in a mirror, without affecting the operation of the device. The chute 15a may be curved laterally if its inclination is made slightly steeper to overcome the friction of the ware against its sides. As it is essential that the passage of the pieces of ware through the chutes 15. 15a shall take place in a space of time short enough to prevent their cooling below the point at which they are. pliant, the receiving end of the leer must be located near enough to the point of delivery from the mold to render, practicable the transfer of the ware by gravity through the chutes within the stated limit of time.

Having thus described my invention I claim:

l. A leer comprising a practically inclosed receiving-chamber, a combustion-chamher, a series of cooling-chambers connected to said receiving-chamber, a main-conveyer, a crossconveyer,l a multiple-chute from the crossconveyer to the main-conveyer, a chute from the outside to the cross-conveyer, stops adjacent to and deflectors attached to the lower ends of both chutes, a pusher-bar and means for actuating the conveyers and the pusher. bar, substantially as described.

2. A leer comprising a receiving-chamber, a combustion-chamber, means for 'heating the combustion-chamber, a series of coolingchambers connected to the receiving-chamber, a n'iain-conveyer partially within the re; ceivingand cooling-chambers. across-con'- veyer entirely within the receiving-chamber. a multiple-chute with deiectors from the.v cross-convcyer to the main-conveyer. a jointed chute with delector from the outside to the end of the cross-conveyer, an adjustable stop adjacent to the lower end of the said jointed chute, an interchangeable multiple-stop adjacent to the lower end of the said multiple-chute, a` multiple-pusher-bar and means for actuating the said conveyers and pusher-bar. I

' 3. A leer comprising interconnected and heat insulated receiving and coolingr chamwithin said chambers, a cross-conveyer entirely within sald receiving-chamber, a chute j bers. a 'main-conveyer with its upper section or inverted positions, concaved defiec ors for transferring articles of glass in a-pliant state vfrom the molds to the receivingchamber in a space of time in which said articlesI cannot'cool below a point where setting or I partial solidification takes place, a concaved deflector at the bottom of said chute, a stop with a concaved striking edge, means for `heating the metal parts-with which said articles are inlcontact and said receiving chamber, and means for depositing the articles upon the main-conveyer for the purpose and in themanner described.

4f. The combination of a leer comprising 'a heat insulated chamber, a single inclined chute adapted to conveying stable pieces of ware, such as tumblers, by gravity, one yby one, from a point Without said chamber to a point withirr it in a space of time short enough to prevent the cooling of the ware beyond certain described limits, a cross-conveyer, a pusher-bar with periodical reciprocating motion above land across the crosse conveyer, an inclined multiple chiite `for receiving the rows of stable ware pushed off of the cross-conveyer and carrying them by gravity to the main conveyer, guides in said multiple chute for preventing contact between the pieces of ware, a main conveyer below said multiple chute and means for actuating the parts in said combination substantially' as described'.

5. In a leer the combination of an outward projecting closed chute setr in close proximity to a mold from which formed ware is delivered, said chute being adapted Ato convey each piece of ware deposited upon its outer end to the receiving-chamber of' said leer within a described time limit, a concaved deflectorv at the bottom of said chute,a stop with a concaved striking edge and a downward projecting arm in line with and in fixed relation to said chute.

' 6. In a leer of the character described a chute adapted to carry piecesof ware which are slidable by gravity thereon in either upright or invertedpo'sitions, a concaved dei flector at ythe bottom of said chute, a stop with a concavedy striking edge and a downward extending arm positioned indefinite .relations to said chute and deflector, as ,andA v for the purposes described.`

'7. In a leer of the characterdescribed a vrow of chutes in multiple, each unit beingl adapted to carry pieces of w'are wbich'are slidable thereon by gravity in either upright and guides at the bottoms of said multiple chutes and stops with concaved striking edges positioned iii -definite relations to said multiple chutes and deflectors, as and foi' thepurposes described.

8. In a leer of the character described the combination of across-conveyer, mechanism for actuating said conveyer intermittently in predetermined periods of time correothers inserted therein, with the spacings between the said notches and guides conforme ing to the desired diameter `of the pieces of ware produced, plus a given clearance.

9. In a leer of the character described, the combination of a muflle-plate below the return or lower run of an endless conveyer and in heating relation thereto,A a combustionchamber and a source of heat below said mufile plate, a heat insulated receiving chamber above the upper run of the receiving end ofthe conveyer, a passage for hot gases between the said combustionand receivingto' be heated to a certain degree by radiation from said muiiie-plate and by direct contact with the hot gases.

10. In a leer of the character described a 'conveyer-seal consisting of a fixed lower section closely fitted to the conveyer parts, and a 'close fitting. fiangedA upper section adapted to; ride upon the-conveyer.

11. In a leer a feeding chute comprising a fixed and inc'losed lower section, an up'- wardly swinging'upper section, an extension of the'bottomA of the upper section between the sides of and replacing a portion of the chambers anda cross-conveyer in a position bottom of the lower section and 'a timing valve at the top of the said lower section.

l2. In a leer a feeding mechanism comprising a chute having a bottom section fixed `and a top section hinged thereto, a pair of oscillating timing-wings geared to an arm of a rocker-shaft, a roller-,on an arm of said j rocker-shaft adapted to engage the wearing surface of a cam and means to rotate said' cam in synchronism with the rate of production Aof the pieces of ware.

, ,13. In a leer a feeding me'chanismlcom-A prisiiig a' chute, timing-wings within said chute and means .for oscillating the said wings through a positive drive on their'out- 'ward or retarding stroke and through a spring tension drive on their inward or feeding in stroke.

.14. In a leer a feeding mechanism comprising a chute, a Valve in said chute for retarding the passage of articles a given interval'of time and advancing them at regular intervals of'tiine and means for actuatingv said valve with apositive drive in the Ietarding i means for depositing the ware in positionk upon the cross-conyeyer, a pusher-bar and means for actuating itat certain intervals of time, a main-conveyer, a multiple-chute from the cross-conveyer to the main-conveyer and means for depositing the Ware in position on the main-conveyer.

16. In a leer feeding mechanism the combination of a chute, a timing valve in the chute, a cross-conveyer, a deflector and a stop at the end of the chute and above the cross-conveyer, a pusher-bar moving across the conveyer, a multiple chute receiving articles pushed from the conveyer, means for actuating the said timing valve and crossconveyer at intervals of time corresponding to the rate of production of the ware and means for actuating the Said pusher-bar at intervals corresponding to selected multiples of the rate of production of the ware.

17. In a leer feeding mechanism the combination of a drive shaft-geared to a motor, a cam and a combined gear and crank-disk on the 'drive shaft, a driven shaft having on one end a crank-disk and on the other end av gear, a hollow slide, a solid slide within the hollow slide, a connecting rod between the solid slide and the crank-disk on the driven shaft, a latch having an outward extending arm and a downward extending arm terminating in a hook adapted to engage a pin in the solid slide, a pin in the hollow slide engaging a driving arm on a rocker-shaft, segmental gears on the rocker-shaft, rack-rods meshing into said segmental gears and attached to a pusherbar, a cross-conveyer head shaft, a series of ratchets and a pawl-carrier with pawls on said conveyer shaft, a'timing-disk on said conveyer shaft adapted to control" the ac- .tion of the said outward extending arm on the latch and a connecting-rod between the pawl-carrier'and the crank-disk on the drive shaft. v

18. In a leer feeding mechanism the combination of a chute for conveying ware by gravity to a cross-coni-'eyer of a pusher-bar Ahaving notches or teeth in the edge, which comes in contact with the ware, a main-conveyer and -means for actuating the said pusher-bar and conveyers, substantially as described.

19. In a'leer feeding mechanism a pusher-v bar and means for actuating it controlled by a timing-device comprising a drive shaft geared to a motor, a driven shaft geared to fbination of a gravity conveyer entirely withinthe heated receivgravity.

the drive shaft, a crank-disk on the drivenv shaft, a hollow slide with a periodical re-A ciprocating motion, a drive arm on a rockershaft actuated by a stud on the hollow slide,

a solid slide with a continuous reciprocating motion withinthe hollow slide, a connectingrod between the crank-disk and the solid slide, a latch in the hollow slide adapts ed tol engage ay pin in the solid slide at fixed intervals of time, a timing-disk with a notch adapted to receive an arm of the latch once in each revolution, a dog pivoted on the timing-disk, and means for drivingthe timing-disk at a speed which is at a givenratio to that of the crank-disk. y

20. In a leer feeding mechanism a cross conveyer, a cross-conveyer head shaft, one or more ratchets keyed to the head shaft, a pawl carrierpivoted on the head shaft, one or more pawls in the carrier with all but one thrown out of engagement, a crankdisk on a drive shaft, a connecting-rod between the crank-disk and the pawl carrier, the arc of travel of the carrier being such that the cross-conveyer is advanced a distance equal t'othe largest diameter of each piece of ware, plus a predetermined clearance, at each revolution of the crank-disk.

21. In a leer feeding mechanism the come ing chamber of the leer, a pusher-bar disposed above the cross-conveyer, said pusherbar having a toothed pushing edge, the

eding chute, a crossspacing of the teeth being in relation to the spacing of the ware on the cross-conveyer, means' for actuating the pusher-bar giving it a quick forward and return stroke at certain intervals of time across the cros's-conveyer a multiple chute for carrying trans- -verse rows of ware from the cross-conveyer to a main-conveyer, the said chutes conveyers and pusher-bar being adapted to prevent contact between the pieces of ware.

22. In a leer feeding mechanism the combination of a gravity feeding chute, a crosslconveyer within a receiving chamber, a

multiple chute for conveying ware from the cross-conveyer to a main-conveyer, a pusherbar for pushing ware from'the cross-conveyer to the multiple chute, a cullet or waste material chute at the discharge end of-saidcross-conveyer adapted Ato receive and dis- -charge at a point outside of the receiving chamber any ware which may not havebeen pushed off of the cross-conveyer and an automatic door at the lower end of the cullet chute adapted to open by the weight' of the outgoing pieces of ware and to close by Witnesses.'

PHIL S. BENTEL, GoLDIE G. ROBEY.

Images