US1354871A - Mangle - Google Patents

Description

W. J. ASHER.

MANGLE.

APPLICATION FILED DEC-14,19l6. 1,354,871 Patented Oct. 5, 1920.

5 SHEETS-SHEET I.

W. J. ASHER.

MANGLE.

APPLICATION FILED 05014.1916.

5 SHEETSSHEET 2.

1,354,871. Patented 0%. 5,1920.

gvvue'n Tot Witness I W. J. ASHER.

MANGLE.

APPLICATION FILED DEC-14,1916

1,354, 71, A Patented 001:. 5,1920.

5 SHEETSSHEET 3.

W. J. ASHER.

MANGLE.

APPLICATlON FILED DEC- 14, 1916.

1,354,871. Patented Oct. 5,1920.

5 SHEETSSHEET 4.

lu l

W. J. ASHER.

MANGLE.

APPLICATION FILIED 02014,, 1915. 1,354,871, Patented 0ct..5, 1920.

5 SHEETS-SHEET 5- 'NITED STATES WILLIAM J, ASHER, OF WORCESTER, MASSACHUSETTS.

HANG-LE.

Application filed December 14, 1916.

To all whom it may concern:

Be it known that I. YILLIAM J. ASHER. a citizen of the United States. residing at 'orcester, 'orcester county. State of Massachusetts, have invented certain new and useful Improvements in Mangles, of which the following is -a specification.

This invention relates to improvements in the clas of laundry machinery used to smoothen or iron clothes. such machines being commonly termed ironing machines or mangles. T he objects of the invention are to provide a novel arrangement and means for mounting the dofling knives: to provide an automatic stop mechanism which operates in case the feed roll is displaced: to provide means to move a series of rolleis cooperating with the d'riun toward and away from the latter. and. to furnish means on the feed board for guiding the tapes which pass thereover.- Other objects will be apparent from'the description taken in connection with the drawings. in which.

Figure 1 is a side elevation of the machine:

Fig. 2 is a side view partly in section showing the mechanism for moving a series of rollers toward and from the drum;

Fig. 3 is a sectional view taken substantially on the line 33 of Fig. 7:

Fig. is a. plan view of the feed table showing the tapes in section where they pas "over the forward edge of the same:

Fig. :3 is a plan view showing the mechanism for moving the rollers toward and from the drum and illustrating a part of the belt shifting mechanism. with the belt on the tight or driving pulley:

Fig. 6 is a section taken substantially on the line 66 of Fig. 5: v

Fig. 7 is a detail sectional view through the feed table. dofiing means and related parts;

Fig. '8 is a plan view of the dotting bar with some of the dofiing knives mounted thereon:

Fig. 9 is an enlarged view of a part of -Fig. 8 showing the dofiing bar and doffing knives mounted thereon:

Fig. 10 is a sectional view taken substantially on the line 1010 of Fig. 9. i i The machine comprises a base 20 having the side frames 21 between which is rota tively mounted the drum 22. This drum is formed with a steam chamber or other means Specification of Letters Patent.

Patented Oct. 5, 1920..

Serial No. 137,030.

for heating the same and has asmooth periphery around which the material to be ironed adapted to be carried by an endless apron 23. A bracket 24 is attached to one of the side frames 21 and carries a shaft 25 on which are mounted the tight and loose pulleys 116 and 117. by means of which the entire machine is driven. The shaft 25 carries a pinion 26 which meshes with a spur gear :2? and mounted on the same axis and adapted to rotate therewith is a pinion '28 which in turn drives the spur gear '29 rigidlvconnected with the drum. As shown in Fig. 1 the endless apron passes over a roller 30 at the top of the machine. then around an adjustable roller 31. thence downward and successively around the rollers 32. H8 and 3&- to the roller and then around the periphery of the drum to roller 36.- which is located near and parallel to the roller 35. and finally returning to roller 30. The material to be ironed is fed in over the roller 35 from a feed table illustrated in Figs. 3. 1t and T. As shown in Fig. 1' the upper surface of the feed table 37 is arranged substantially tangential to the roller 35 and has a roller 38 rotatively mounted in front of the same so thatsaid surface is also tangential to the latter roller. A. series of tapes 39 are arranged to pass around the roller 38. over the top surface of the feed table. and around the forward edge 0 of the same. returning un derneath the table to the roller. As clearly shown in Fig. 1. the forward edge 40 of this table is scalloped or corrugated to form concaves which are of a widthadapted to receive the tapes and guide them. thus preventing lateral displacement of the same. A. feed roller 11 is arranged adjacent the edge -10 of the table and adapted to cooperate with the tapes 39 so that the material to be ironed is fed to the machine between said roller and the tapes. As shown in Fig. 3. this roller 4:1 is rotatively mounted at its ends in the arms 42. which in turn are rigidly connected to the bar 13 carried by the brackets 4- on the side frames. The bar 13 projects from one side of the machine and carries a depending rod 45 for a purpose presently to be described.

After leaving the roller 35 the endless apron passes between the drum and a series of rollers 16. HT and 118. These rollers are arranged so that they can be moved ward and from the drum and the means ior accomplishing this will now be described. As shown in Figs. 1, 2, and 5, the roller 35 is pivotally mounted at its ends in the brackets 47. These brackets consist of two arms 48 and 49. The arm 49 at its lower end is pivotally and slidingly attached to the side frame 21 and thearm 48 at its and hence it will be sufiicient to describe the structure at one side. Asclearly shown in Fig. 2, the means for connecting the arm 48 and the ring 50 consists of an adjustable linkor connecting rod 51, which is pivotally connected to the ring 50 and at its other end has a slot and pin connection with the arm 48. In Fig. 2 the series of rollers are shown in the positions which they occupy when fore the arrangement of the parts is such that the center line of the-link 51. and the radius from the center of ring 50 to the pivotal connection of link 51 and ring 50 form substantially a straight line. Thus it-will be apparent that if the ring 50 is turned slightly clockwise as viewed in F ig.. 2 the said center line and said radius will tend to depart from a straight line, thereby permitting the arm 48 and its roller 45 to move toward the drum. The arrangement roller toward the drum.

and mounting of roller 46 is similar to that of roller 35. It is mounted in the pivoted brackets 52 which at their upper ends are connected to the rin 50 by means of the extensible links 53. t will be observed that the arrangement of rollers 35 and 46 with respect to the pivot points of the brackets 47 and 52 is such that the weights of the same tend to move said rollerstoward the drum. Furthermore, the pull of the apron as it passes around the roller 35 is an added force tendin% lt]o move the said -148 are arranged so low -down that it is not a convenient to depend upon gravity to move the-same toward the drum and consequently other means is furnished. As shown, the roller 147 is mounted at its ends in. the brackets 54 which in turn are pivoted at 55 to the side frames. The upper ends of these brackets 54 are pulled toward the drum by means of springs 56 andsaid ends have a pin and slot connection with links 54, which connect the brackets to the ring 50. The roller 148 is similarlymounted in brackets 57 which are pulled toward the drum by springs 58 and connected to ring 50 by the adjustable links 59. It will be obvious from the foregoing that the said springs 56 and 58 pull the rollers 147 and 148 toward the drum and that said rollers can be moved away from the same by turning ed away from the drum ande rollers 147 and accomplished by power means under con-- trol of theoperator. As shown in Fig. 2, the

be moved to i ring 50 may be connected by means of allnk 61 with a rocker arm 62 rigidly connected with-the rock shaft 63. As shown in Fig.6,

this rock shaft 63 has conected thereto at one end to rotate therewith and slide therealong a hub 64 having an externally toothed segment 65 and laterally spaced therefrom an internally toothed segment 66. The hub 64 is formedwith a groove 67 which is adapted to receive the end of a finge'r 68 carried by the longitudinally movable rod'69 arranged transversely of the machine. Arranged parallel with the side frame 21 at the side ,7

opposite the said segmentsis a rod '70 which.

extends to the front of the machine and is provided with an operating handle 71 at its forward end a iid at its opposite end with a crank 72 which is connected to and adapted to shift the rod 69. The segments 65 and. 66 are arranged to be driven by the continuously rotating pinion 28 and by I means of the'shifting mechanism just de-- scribed the hub 64 can be moved on the rock shaft 63 so that either the segment65 or the segment 66 will be in gear with said pinion 28. The segment 65 is formedwith a blank space 73 at one end of its periphery and the segment 66 with a similar blank space 74 at the end opposite the blank space 73. Thus it will be apparent that when the pinion 28 is in the position illustrated in Fig. 2 it has just finished driving the segment 65 and the segments may shifted laterally to bring the annular one in mesh with said gear 28, whereby said pinion 28 will drive the segment 66 in the direction indicated by the arrow, thus rocln'ng' the shaft 63. and turning the ring' 50 so as to move the rollers 35, 46, 147 and 148 toward the drum.

If the operators fingers should be caught between the 'feed roll 41 and the tapes the Q said roll 41 be swungso as to turn the bar 43 and this will operate a stop mechanism whereby the driving power will be thrown off. 'As previously mentioned, the machine is driven by a belt on the tight pulley 116., A belt shifter 75 is adapted to be.

moved to shift the belt from one pulley to the other. This shifter is shown in elevation in Fig. 1 and in plan in Fig. 5. It is supported by an arm 76 pivoted at its lower end as at 77 and the upper end of this arm is connected by means of a link 78 with a crank 79 rigidly fastened to the rod 80 which is' 2 carried by one of the side frames 21. This rod 80 is mounted in bearings 81 and 82 and the ring a torsion spring 83 is interposed'between the rod and the bearing 81 which when stressed tends to turn the rod 80 in such a direction as to shift the belt from the tight to the loose pulley. At its upper end the rod 80 is provided with a disk 81 which has a notch 85 and a stop shoulder 86 formed therein. which are adapted to cotiperate with the end of the rod 15 carried by the bar 13. 'hen the belt is shifted from the loose to the tight pulley by means of the handle 87 to start the machine the torsion spring 83 will be stressed and therod S0 turned so that the notch 85 will register with the end of the rod 15. thereby latching the rod 80 with the torsion spring in stressed position. If for any reason the feed roller 11 is swung out of position it will move the rod 15 out of the notch 85. thereby permitting the torsion spring$3 to exert its energy and throw the belt from the tight to the loose pulley. thereby throwing off the driving means and stopping the machine.

The novel dotting means illustrated in Figs. 7. 8. 9 and 10 and as shown consists of a bar 88 which is attached at its ends to the side frames of the machine and at one edge is formed with a series of ears'S9 between which are pivotally mounted the knife carrying arms 90. The knives 91 are T-shaped in plan view and the shanks 92 thereof are fastened to the arms 90 by means of the counter-sunk screw 93 and the adjusting screws 9-}. It will be apparent that by manipulation of the adjusting screws 91 and the screw 93 the inclination of the knives with respect to the arm 90 may be varied. As shown in the drawings. a plurality of arms 90 is provided and each arm 90 is furnished with a plurality of knives 91. Because of the shape of the knives and the manner in which they are attached to the arms 90. rectangular spaces 95 are formed between the knives and the arms and tapes 96 pass through these openings. around the rollers 36 and 97. and thence around an adjustably mounted roll 98. returning to the roller 97 and thencepassing around the lower edge of the bar 88. the side of the bar toward the drum being formed with the recesses 88" to guide said tapes. As the material which is being ironed comes around on the periphery of the drum 22 it will be scraped therefrom by the knives 91 and taken between the tapes 96 and the roller 36 and carried around the latter roller and on the outside of the apron up over the roller 30 to the roller 31 and discharged on the table 99. The arrangement of the .pivots of the ar 90 and the direction of pull of the tapes 96 over said arms is such that said pull tends to force the knives into contact with thedrum. The roll 97 and rod 98 are carried by brackets 100 at each side of the frame, said brackets being pivoted at 101 so that the brackets may be swung about said pivot'to carry the rollers away from the roller 36. Similarly the roller 36 is mounted on brackets 102 pivoted at 103 so that the weight of the bracket tends to force the rollerinto contact with the frame and so that the bracket may be swung about said .pivot to carry the roller away from the drum after the brackets 100 have been swung to'their lowest and. inoperative position. Thus by manipulation of thesebrackets the knives and attached parts may be exposed and made accessible for adjustment and repairs.

An inspection of Fig. 3 discloses that the upper surface of the feed board is slightly convex from edge to edge. that is the center of the surface is slightly higher than its edges. It is found that with the feed board as usually made that the material to be ironed. as it. passes under the roll. causes a deflection of the feed board at its center wherebythe material is grinned and fed forward at its edges only. resulting in defective work. Because the forward edge of the board must be close to the roller 35 and the tapes must pass therebetween. the thickness of the board at this edge is limited. A special means is therefore pro-- vided to strengthen the board against deflection and to give ita slight convexity. As shown in Figs. 1 and T the board. on its under side. is formed with a web 105 which has its greatest depth at the center of the board. and tapers off to the thickness of the board itself at the edges of the latter. This web is formed with a groove 106 which is designed to receive a tie rod 10? extending from edge to edge of the board. and having the nuts 108 on the ends thereof. It is apparent that by screwing up the nuts 108 the slight convexity of the feed boardmay be maintained. The web 105 in effect is equivalent to a strut at the center of the board. and

it is obvious that the specific means for produclng the convex surface may be varied from that dlsclosed herein.

The material to be operatedon by the machine is carried by the tapes 39 over the feed board to the apron 23 passing around the roller 35. the feed board surface being substantially tangent to the periphery of said roller. It will be observed that the arrange ment of the dotting tapes is such that they are located just above the roller 35 and move in the same direction as the apron 23. Thus these dofling tapes cotiperate with the apron 23 in feeding and guiding the material to the drum.

It will be observed that the ring 50 in effect constitutes a rocker interposed between the end of the links 51. 51 or 59 and the axis of the drum.

Although these improvements have been shown and described in connection with a particular form of machine it is obvious that they are adapted for other types of machines and that many changes may be Having thus described the invention, what is claimed and desired to be secured by Letunder the board, and said edge bein formed with a recess to guide the tape. a

V 2. In a mangle, in combination, a rotary drum, and dofling means including a bar,

arms pivotally mounted on said bar, dofiing knives secured to each arm adapted to rest against the cylindrical surface of the drum and means for independently adjusting the angle of each knife relative to the surface of the drum. 1

3. In a mangle, in combination, a feed board, a feed roller arranged to cooperate with the-surface of the board, and means for maintaining the surface slightly convex in the region under the roller.

4. In a mangle, in combination, a feed board, a strut'on the under side thereof, and a tie rod adjustably secured to the edges of the board and engaging the underside of the strut.

'5. In a mangle, in combination, a feed board,'ta pes passing over its surface around the forward'edge and returning under the board, and means on the under side of the board between the portions of the tape under the board and the board for maintaining the surface near the said edge slightly COIIVBX.

- edge'thereof the feed surface of the board being tangent to the roller, an endless tape passing from the roller across the feed surface over the opposite edge and back under the board to the roller, a drum, a second roller between the said latter edge and drum, the feed surface of the board also being tangent to said second roller, and an endless apron passing between said latter edge and second roller, around the second roller, thence between the second roller and drum and around the drum.

8. A mangle, including in combination,

1 a-feed board, a roller arranged parallel to an edge thereof the feed surface of the board being tangent to the roller, an endless tape passing from the roller across the feed surface over the opposite edge and back under the board to the roller, said latter edge being formed with means to prevent lateral displacement of the tape, a drum, a second roller between the said latter edge and drum, the feed surface of the board also being tangent to said second roller, and an endless apron passing between said latter edge and second roller, around the second roller, thence between the second roller and drum and around the drum.

9. A mangle, including in combination, a drum, feeding means including a feed board, a roller between the drum and board and doffing means above the feeding means including tapes spaced from and moving in the same direction as the adjacent surface of said roller, the pathsof said tapes extending into the space bounded by said roller, the drum and a horizontal tangent to the top of' the ,roller, whereby said tapes cooperate with said roller to guide the work to the drum.

10. A mangle, including in combination, a rotary drum, dofling means including a bar arranged parallel to the axis of the drum, arms pivoted at the edge of said bar away from the drum, dofiing knives on said arms adapted to rest against the cylindrical surface of the drum, a roller above said bar and endless tapes passing'from said roller around said bar thence around the edge of the arms adjacent the drum. 1

11. A mangle, including in combination, a rotary drum, dofling means including a bar arranged parallel to the axis of the drum, arms pivoted on-the bar, a plurality of T-shaped knives having their stems secured to the arms, and screw means for independently adjusting the angle of each knife relative to the surface of the drum."

12. A mangle including in combination, a drum, means for feeding work to said drum including a feed board and a roller disposed between the feed board and drum, means for doffin the work from said drum including a do er knife bar having its lower edge disposed in the space between said roller and drum, and tapes passing down one side under and up the other side of said bar be tween the bar and drum whereby said tapes cooperate with said feeding means to gulde the work to the drum.

13. In a mangle, in combination, a drum, a pivoted arm having a dofling knife adapted to rest against the cylindrical surface oIn testimony whereof I aflix my signature.

J. ASHER.

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