US1497293A

US1497293A - Automatic ice-cream-cone machine

Info

Publication number: US1497293A
Application number: US58020A
Authority: US
Inventors: Denaro James
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-10-26
Filing date: 1915-10-26
Publication date: 1924-06-10
Anticipated expiration: 1941-06-10

Description

4 Sheets-Sheet 1 J. bENAho AUTOMATIC ICE CREAM CONE MACHINE Filed OCf..- 26, 1915 June '10 1924.

INVENTOR WITNESSES:

.lmielo {1924,

=1 J. DENARO Au'roMATic ICE CREAM CONE MACHINE Fild Oct. 26, 4 Sheets-Shet 2 June 10 1924.

J. DENARQ AUTOMATIC ICE CREAM GONE MACHINE 4 Sheets-Sheet 5 INVENTOR Filed Oct.

WITNESSES:

June 10 1924. Q 1,497,293

J. DENARO AUTOMATIC ICE CREAM CONE MACHINE Filed Oct. P 315 4 Sheets-Sheet 4 ifaitented dune W, lig d,

I aaeaaas JAMES DENABO', 0F CAMBRIDGE, MASSACHUSETTS.

AUTOMATIC ICE-CREAIllI-CO-NE BEACHINE.

Application filed October 26, 1915. Serial No. 58,020.,

delivering the cones trimmed and ready for packing.

It is one of the objects of the present invention to greatly simplify the construction .and operation of the machines of the character referred to, and to render such. machines highly automatic in their operation with an exceptional degree of reliability and eiticiency. To obtain this end, I have provided improved means for opening the molds and raising the cores. in order to discharge the baked cones. I also have provided an improved baking oven construction, parts of which serve the double function of slid-ably supporting the dividable female mold units. I have also obviated the possibility of the cores mutilating the finished baked cones during the lifting of the cores in the discharging operation, and the possibility of scarring the mold sections when they are moved toward each other to establish the baking position of the parts. To-

wards this end I have provided, as in the preferred embodiment shown, a parallel link suspension of the core carrying arm, and an operating device for this parallel link suspension which is effective between the hub of the machine and the circle of the molding units. A distinct advantage arising from the use of such mechanism is in the sli ht, comparatively negligible, lateral movement of the cores, particularly the apices of the cores during the early lifting movement. No substantial lateral movement of the cores takes place until after the cores have been lifted well clear of the baked cones. The arrangement of the core carrier operating mechanism between the hub of the frame and the mold units renders it unnecessary to provide ,a movable filler spout for the batter, or to employ the method of dipping the cores in a batter tank to coat them a herein shown. If desired, a simple filler spout could be arranged across the path of the mold units and ope?- ated by suitable valve actuating mechanism to discharge batter into the closed mold units at any desired position of the rotatable wheel. I have, however, in the embodiment of the invention herein shown, provided means for raising the cores above a dough-pan, then dipping them in the dough and subsequently returning the cores to the mold suitably coated with batter. 1

I also obtain remarkably high production of cones in a given time. This is due, among other things, to the arrangement of actuating means and devices to produce a simultaneous movement of the molding elements in their operation of opening to discharge the baked product.

By utilizing two spaced annular plates as main elements of the rotatable wheel or frame, I am able to cause them to serve as a part of the baking means, specifically, an oven, and also, in part at least, as a support and slideway for the female mold elements. It is understood, of course, that the annular plates referred to are composed of parallel and straight sided sections arranged successively to take on a general arcuate characteristic. Between the parallel walls of these sections the molding units are adapted to slide toward and from each other maintaining always a parallel relationship.

Other objects will be in part obvious and in part pointed out particularly hereinafter.

The invention accordingly consists in the various features of construction, combinations of elements and arrangements of parts which will be exemplified by the construction hereinafter set forth and the scope of the application of which will be indicated by the following claims.

Figure 1 is a plan showing a general arrangement of the machine. Figure 2 is a view partly in section on line AB in Figure 1. Figure 3 is a plan of a portion of the wheel. Figure 4 is a section on line in Figure 1. Figure 5 is an elevation of the track for operating the core frame and is taken on line EF in Figure'Q. Figure 6 is a detached view of the dough pump partly in section. Figure 7 is an end view of the mechanism for operating the molds. Figure 8 is an enlarged view of thesame showing the'molds open. Figure 9 is a View showing the pipe connectionsfor the gas burner, and Figure 10 an elevation of the cone trimming mechanism.

Similar figures refer' to similar parts throughout the several views.

1, represents a vertical'shaft free to turn in a bearing 2 on a floor bracket 3, and resting on a thrust bearing 4.

Near the top of shaft .1 is ahub 5 Sup ported by shoulder 6, and made to turn with the shaft 1 by set screw 7.

Threaded into the hub are the radial spokes 8 which hold the plates 9'and 10 in p ace with the assistance of the spacer l2 shoulder 11 and nut 13.

- turn with the shaft 1 by set screw 17. 18,

'

tions

34 and 35. 42 is a chain, one end of 19 isa is a worm gear keyed to shaft -1.

18 and wormgmeshing with worm gear driven by the shaft 20 which turns in suitable bearings 21, 22, and 23, and derives its ower from a motor 24

throughsuitable elting

25, and 26, and speed changing pulleys 27. '28 is a corner support bracket for the frame 29 and braces 30 which are bolted to the hub 31 in which the end of shaft 1 revolves; On the brackets 28 is mounted a stud 32 supporting a roller 33 on which the plates 10 ride when the structure is revolved. Each mold consists of two halves or

sections

34 and 35, the ends of which slide in

guides

36 and 37 on

plates

9 and 10.

Mounted in a suitable bearing 38 in plate 10 and 39in plate 9, is a cam shaft 40 carrying cams 41, acting against mould sec-L whicl1 is fastened to the mold frame 34, 1

above the cam shaft 40, and the other end is passed around the roller 43'on cam 41, and fastened to the mold frame 34 under the cam shaft 40. 97 is a segment of a pinion meshing with a rack 98 on bracket 100 which slides in guides 101 on plate .10. 99

is a roller on stud 102, projecting from.

bracket 100. 103 is an unlocking cam track on frame 104 and 105 is a locking cam track on frame 104.

44 is a core frame carrying cores 45. On frame 44, are the spaced bearing pins 46 disposed in' a vertical line and connected by parallel bars 47 to hearing pins 48 also disposed in a vertical line with the same spacing. Bearing pins 48 are mounted in a bracket 49 bolted to the hub 5. 50 is anupright bar pivoted at 51 to bar 47 and at 52 to slide plate 53 which slides vertically in guides 54 on plate 9. 55-is a roller mounted V on a stud 56 projecting from plate 53; The

and high enough to pass over the leading edge, down into, then up and over the rear edge ofthe dough pan 58 which is secured to frame 59 by bars 60.

The dough is supplied to the don h an 58 by a pump of which 61 is the cy in er; 62 is a piston; 63 a piston rod, and 64 another piston movable on rod 63. 4 65 is a spring acting to hold. piston 64 against the adjusting nut 66, adjustably mounted upon the threaded end -67 of rod 63. 68 is a spring to hold piston 62 out. 69 is a lever: arm acting on roller 70 which is mounted in the end of piston 62 on a pin 71, toforce the piston in. 72 is-a pin projecting from plate 10 for engaging the lever 69 on the pump. The pump cylinder is securely fastened to plate 136 on bars 60. 73 is an inlet port and is connected to the dough supply tank 74 by a flexible hose 75. 76 is an outlet port co-dough pan 58. ,77 are gas pipes with spaced holes to form burners for heating the oven above the moulds, which oven has for its

sides plates

9 and 10, and top plate 78 which is suitably lined on the inside with asbestos. The pipes 77 are secured to the top plate 78 with straps 79. i

' A portion of the top plate '80 is hinged at 81 and carries rails-82 which bear on the core frame 44, tending to press the core frame very tightly on the mould frame. The desired pressure is obtained by springs 83 between the top of hinged plate 80 and frame brace 30. The oven below .the moulds has gas pipe burners 84 supplied with gas through

pipes

85, 86, and 87, and controlled by valve 88.

Pipes

89, 90, and 91 supply the upper-oven. Air is forced into the pipe system by a blower 92 through pipe 93, the

blower being driven by shaft 20 through pulleys 94 and 95 and belt 96. v j

106 is a chute on which the cones drop when the moulds open, the cones sliding down this chute, and into the holes 107 in plate 108. The trimmer 109 is conical shaped, with a greater angle than the pastry cone to impinge the edge of the hole 107 and trim the cone to the size of the hole. The cones drop through on to the conveyor 110 and are carried to the packing table, while the trimmings slide down on the upper side of the plate 108 to conveyor 111 and are carried to a waste receptacle.

The trimmer 109 is mounted'on shaft 112 which turns in bearing 113 on frame 114 and is operated by arm 115 against which the projecting pin 116on plate 9 acts to turn the trimmer into the holes 107, thetrimmer being thrown back by the spring 117 which is fastened to frame 114 and to arm 118. The chute 106 and plate 108 are suitably fastened to the frame 114.

The conveyor 110is driven from the shaft 20 through pulle 119, belt 120, pulley 121, and shaft 122. he conveyor 111 is driven 'ment with the worm.

During the operation of the machine the roller 55 rides up on the track 57 and is raised slightly as shown at GFigure 5. The roller 55, being connected to the core frame 44: through the stud 56, plate 53, the

arm 50, the pin 51, bars 47, pins 16 and 48, when the roller -is raised to the level G, the cores are free from the cones, and at this point the moulds are timed to open and let the cones drop. As the wheel continues to revolve the roller 5o runs up to the level H, which brings the cores high enough to pass over the edge of thedough pan 58, and

' from that level the roller drops to level as indicated at I, which brings the cores into the dough to the required depth. The cores being hot, sufi'icient dough adheres evenly to form a cone. Vhen the roller is at the level J, the cores are over and above the edge of the dough pan, and so that they come down outside of the latter, and into the moulds, and in this position pass into the oven, the dough pan being wide enough to allow of this operation without stopping the wheel. core frame 44 slides under the track or runner 82 which are attached to the hinged plate 80 and which in turnis held down by springs 83, and thus the cores are pressed down very firmly in the proper position in the moulds'for a sufficient time to allow the dough to become firm or hardened by the heat, after which the weight of the core frame and cores are all that is required to keep the cores in position.

It will be seen that the core frame is in a horizontal position at all times, although swinging on the arc of the parallel bars 47, the advantage of this is that all the cores will be dipped in the dough to the same depth, and will always be in "a vertical position in the moulds, even if some of the mould frames should be on different levels. Also, they are maintained vertical while being moved into and out of the molds, so that the points of the cores do not engage the sides of the mold cavities. The cores are freed from the cooked cones by a movement that. is substantially axial of the core and mold cavity, thus avoiding injury to the cones.

f The moulds are caused to open by the ar- As the moulds enter the oven therangement of cam tracks shown in the detached view Figure 7. its the mould wheel revolves the roller 99 runs up on the track 103 and carries with it the bracket 100 on which are rack teeth 98 meshing with the segments of pinions 9T keyed to the shafts 40 which turn in

bearings

38 and 39 in the

plates

9 and 10, andhave cams l1 thereon for closing and holding the two half mould sections and 35 together, and chains 42 and rollers 43 which act to separate the moulds as the bracket is raised by the track 103. The track is of sulhcient length to hold the moulds open long enough to let the cones drop out, and when the roller 99 comes in contact with the track105 the bracket is forced down, turning the cams against the mould halves until the latter are tight together and the cams are on a dead center, thus holding the parts in that position with the weight of the bracket also tending to hold them in position. hen the cam shaft is turned in the opposite direction the rollers 43 on the end of the cam pull on the chain a2 and open the moulds.

The dough pump is gauged to supply the amount of dough taken out by each dipping of the cores, and is actuated by a projecting pin 72 on plate 10 coming in contact with lever 69 pivoted on plate 136, said lever acting against the roller 70 to force in the piston 62. The dough is fed into the pump through inlet 73 and tube 75 from tank 7 1, and fills the space between the piston 2 and piston 64, which space is maintained by the spring on rod (53, and is adjusted by the nut 66 which has thread meshing with thread 67 on rod (33. The piston 64 being free to slide on the rod 63, when the piston is forced in, the amount of dough in the space between 1 the two pistons is carried to the outlet 76,

and the piston-'64 comes to a stop in the end of the cylinder just after passing the outlet 76, but the piston 62 continues to travel and compresses the spring .65 until the two pistons are together, thus forcing the dough out of the space. The piston 62 is returned for another charge by the action of spring 68. The cylinder 61 is fastened to the plate 136, by suitable straps 137.,

The trimming mechanism is timed to. operate just after the cones drop into the holes 107, in the plate 108, which latter is attached to the frame 114 at a right angle to the chute-e106, with the center of each hole 107 on a line with its chute, so that the cone will drop into it readily. The trimmer being up out of the way when the cone drops, swings down when the pin on plate 9 comes in contact with arm 115, centers the cone, and trims the edges.

The forms of construction which have been particularly illustrated and described admit of minor changes and modifications, therefore the right is reserved to such changes and modifications that do not depart from the spirit and scope of the invention which-is defined in the appended claims 1. In a machine of the class described, a wheel structure consisting of a vertical shaft driven continuously by a motor through suitable gearing, a hub on said shaft with radial spokes in combination with an outer vertical plate, an inner vertical plate, said outer and inner plates forming the sides of a circular oven the said inner plate held against a shoulder on said radial spoke, and said outer plate held against a spacer on said radial spoke between said inner plate and said outer plate by a nut on said radial spoke bearing against the outside of said outer plate, said radial spokes being on the radial joining line between one set of inner and outer plates and the adjoining set of inner and outer plates, horizontal guides on said plates on which slide two half mould sections in the space between the inner plate and the outer plate, and at a tangent to a line from the center of said hub through the center of the space between said radial spokes, a cam shaft on each side of said half mould section with a cam acting to force said half mould sections together to form a complete mould section, and a roller on said cam acting on a chain both ends of which are fastened to the said half mould section, with the loop OVGl the said cam shaft to separate said mould sections, and means for turning said cam shaft to open and, close said mould sections at a certain point in the revolution of the wheel structure;

2. In a machine of the class described, a movable carrier having mounted thereon a moulding device. consisting of two half mould sections sliding on horizontal guides to allow of said mould sections being moved to join or separate with a parallel motion of said mould sections, a shaft mounted in bearings parallel with each of said mould sec-. tions, cams on said shafts acting to force said half mould sections together to form a completemould section, rollers on said cams, a chain looped over each of said rollers, with one end fastened to said mould section above said shaft, and the other end fastened to said mould section below the said shaft and acting to separate the said mould sections, a pinion on each of said shafts, a bracket with racks meshing with said pinions, vertical guides for said bracket, a projecting roller on said bracket engaging a cam track to lower and raise said bracket, substantially as described, and for the purpose set forth.

8. In a machine of the class described, a rotatable wheel structure embodying a circular oven in combination with a circular plate forming the top of said oven, said circular plate having a portion cut away, to

.allow for charging'and discharging the said oven, a free end portion of said circular plate being hinged at the point where the charged moulds enter the oven, molds adapted to enter said ovens, a' frame carrying cores co-operating with said molds, cam rails attached to the under side of said hinged portion, said rails bearing on the frame carrying cores for said mould, springs pressingon said hinged portion between the upper side of said hinged portion and a top frame brace, substantially as described, and for the purpose set forth.

at. In a machine of the class described, a

plurality of mold sections,-a plurality of core sections each co-operating with a mold section and movable in axial alignment therewith, a movable carrier on which said mold sections and core sections are mounted, a dough pan in vertical axial alignment with said mold and core sections during the charging period, means for rotating said mold and core sections, means for immersing said core sections in said dough pan and subsequently inserting them in said molds.

5. In a machine of the class described,

molding devices including a pair of two part mold sections having a plurality of mold faces and a core for each mounted upon a core carrier, a movable carrier on which said molding devices are mounted,

means for opening and closing said mold sections to discharge the finished product therefrom, means to operate the core carrier to raise and lower the cores relative to the molds and means for applying a coating of batter to the cores while they are raised from the molds.

6. In a machine of the class described, molding devices including a pair of two part mold sections having a plurality of mold cavities and a core for each mounted upon a core carrier, a movable carrier on which said molding devices are mounted, means for opening and closing said mold sections to discharge the finished product therefrom, means to operate the core carrier to move the cores axially of the molds and means for applying a coating of batter to said, cores while aligned vertically with said molds.

7. In a machine of the class described, a rotatable mold section, a core section therefor in axial alignmenttherewith, a dough pan in vertical axial alignment with said mold and core-sections during the period of coating the core with batter, means for imparting relative movement between said core section and said dough pan, means for discharging formed cones from said mold section and a rotatable carrier on which said mold and core sections are mounted.

8. In a machine of the class described, a rotatable mold section, a core section therefor in axial alignment therewith, a dough pan in vertical axial alignment with said mold and core sections during the period of the former in the batter in said dough pan to coat the core therewith, means for releasing formed cones from said mold sections, means adjacent with said mold sec-.

tions to receive said cones and trim therefrom surplus material and a rotatable carrier on which said mold and core sections are mounted.

9. In a machine of the class described," a rotating mold section, a core section co-oper- ,ating therewith and in axial alignment thereto, a dough pan in axial alignment with said mold and core sections at times, mechanism adapted to impart relative movement of said core section to said mold section and in axial alignment therewith and at times to immerse the core section in said dough pan and a rotatable carrier on which said mold and core sections are mounted.

10. In a machine of the class described, a rotating mold section, a core section co-op crating therewith in axial alignment thereto, a dough pan in vertical axial alignment with said mold and core sections during the period of coating the core with batter, mechanism adapted to impart relative movement of said core section to said mold section in axial alignment therewith and to immerse the core section in said dough pan when vertically thereover, means for discharging the formed cone from said moldsection and a rotatable carrier on which said mold and core sections are mounted.

11. In a machine of the class described,

a rotating mold section, a core section 00- operating therewith in axial alignment thereto,'a dough pan in vertical axial alignment with said mold andcore sections during the period of-coating the core with batter, mechanism adapted to impart relative movement of said core sections to said mold section in substantially axial alignment therewith and to immerse the core section in said dough pan, means for discharging formed cones from-said mold section, a rotatable carrier on which said mold and core sections are mounted and trimming means in circumferential alignment with said mold sections and adapted to receive the discharged cones and trim therefrom all surplus material.

12. In a machine of the class described, comprising a plurality of mold sections. core sections for each of said mold sections and movable in substantially vertical alignment therewith, a rotatable carrier on which said mold and core sections are mounted, mechanisms for imparting relatively vertical movement between the said mold sections and core sections, a dough pan within the path of rotation of and in vertical alignment with said core and mold sections, means for imparting relative movement between said dough pan and said core sections to immerse the latter within the former to coat the core sections with batter and return the same to the moldsections.

13. In a machine of the class described, a plurality of two part mold sections and core sections therefor, a carrier for said sections rotating within a horizontal plane, a dough pan in vertical axial alignment thereto within the plane of rotation of the mold sections and the core sections, mechanism adapted to impart movement of the said core section relative to the mold sections and to impart-relative movement between the core sections and the said dough pan, and means for separating said two part mold sections to permit the molded cone to discharge therefrom.

14. In a machine of the class described, a plurality of two part mold sections and core sections therefor, a carrier for said sections rotating within. a horizontal plane, a dough pan in vertical axial alignment thereto, mechanism adapted to impart relative movement between the core sections and said dough pan, means for separating said two part mold sections to permit themolded cone to discharge therefrom, and trimming means to trim surplus material from tini'shed cones.

15. In a pastry baking machine, a horizontally rotatable wheel carrying a plurality of divided female molds and a plurality of male cores, cooperating respectively with the female molds, and means for eifecting a separation of the female molds and a lifting of the male cores substantially simultaneously-said means comprising a parallel and lower spaced links and each group 'being attached to the core memberof each set.

17. In a pastry baking machine, a horizontally rotatable wheel carrying a plurality of sets of divided molds and cooperative core members, a plurality of radially extending links pivoted to the hub of the said rotatable wheel and grouped in parallel pairs, each pair comprising upper and lower spaced links and each group being attached to the core member of each set, and means intermediate the hub of the wheel and the core members for governing the movement of the parallel links.

18. In a pastry baking machine, a horizontally rotatable wheel having slidably mounted thereon, betweenvertical, inner and outer walls, a plurality of molds provided with molding cavities, a plurality of core members, the cores of which are adapted to cooperate with the molding cavities, and

a fixed top plate enclosing the said molds and core members during the major part adaptedto serve as slideways for the said mold sections.

20. In a pastry baking machine, a horizontally rotatable structure comprising a hub with radially extending means supporting inner and outer spaced vertical walls, and a plurality of molding sets supported by said structure, each set comprising a pair of half mold sections and a core; the mold sections being arranged to open and close by sliding in guideways formed in the spaced Walls.

21. In'a pastry baking machine, a horizontally rotatable structure comprising a hub with radially extending means supporting inner and outer spaced vertical Walls, a plurality of molding sets supported by said structure, each set comprising a pair of half mold sections and a core; the mold sections being arranged to open and close by sliding in guideways formed in the spaced walls, and the core being connected to the hub by means of a parallel link mechanism. i

22. In a pastry baking machine, a horizontally rotatable structure comprising a hub With radially extending means supporting inner and outer.:spaced vertical walls,

a plurality'of molding'sets supported by said structure, each set comprising'a pair sections being arranged to open and close' by sliding in guideways formed in the spaced Walls, the core being connected to the hub by means of a parallel link mechanism, and a stationary top cover plate under which the said' structure rotates to formwith the vertical Walls a main baking chamber for the molding sets.

24. In a pastry baking machine, a female mold unitcomprising two half mold sections located between vertical, spaced plates and slidably mounted in horizontal guideways therein, whereby the said mold sections are permitted to move in order to join or separate, and means located between the said vertical, spaced plates adapted to hold.

said mold sections in closed position whereby tendency of the mold sections to separate under pressure of generated steam or gas is positively resisted.

JAMES DENARO.

Witnesses:

J. H. MORGAN, CHAS. N. WALTER.