US2675810A

US2675810A - Wrapping device

Info

Publication number: US2675810A
Authority: US
Publication date: 1954-04-20
Anticipated expiration: 1971-04-20

Description

April 1954 H. H. WHEELER 2,675,810

WRAPPING DEVICE Filed Nov. 28, 1947 FIG.I

3 Shee'ts-Sheetl INVENTOR HENRY H. WHEELER.

BY e Q ATTORNEY April ,1 4 H. H.. WHEELER WRAPPING DEVICE 3 Sheets-Sheet 3 Filed Nov. 28, 1947 INVENTOR HENRY H. WHEELER.

ATTORNEY Patented Apr. 20, 1954 WRAPPING DEVICE Henry H. Wheeler, Bellerose, N. Y., assignor to International Cigar Machinery Company, a corporation of New Jersey Application November 28, 1947, Serial No. 788,378

23 Claims. 1

This invention relates to cigar machines, more particularly to improvements in th wrapper applying device thereof which winds a wrapper cut from leaf tobacco about a cigar bunch spirally to produce a cigar.

Heretofore in wrapper applying devices of the type having a bottom roller and two side rollers the cigar bunch was supported with its longitudinal axis or center line in the same position regardless of variations in the diameter of the cigar bunch. Accordingly bottom rollers having diiferent diameters were required to maintain the longitudinal axis of cigar bunches of various diametors in the same position. Therefore the position of the longitudinal axis of the bottom roller in these prior wrapper applying devices was different for different diameters of cigar bunches and different change gears were required to drive the side rollers with every change in the diameter of the cigar bunch to which the wrapper is applied.

With my improved wrapper applying device the diameter of the bottom roller is not changed and its longitudinal aXis is always at the same position, because the bottom of cigar hunch is always maint ine-d at the same position regardless of variations in the diameter thereof. Therefore the adjustment of the two side rollers to accommodate different diameters of cigar bunches does not necessitate different change gears to revolve the side rollers at the various positions to which they are adjusted to accommodate cigar bunches of different diameters. Accordingly, a further object of my invention is to provide a wrapper applying device whose side rollers may be driven in the various adjusted positions required for different diameters of cigar bunches without changing the gears driving the side rollers. Moreover my wrapper applying device can handle cigar bunches varying in diameter from /8 inch to inch without changing the side rollers. For cigar bunches having diameters less than 43 inch a different size of side roller is needed.

Still another object of the invention is to provide novel mechanism for supporting the side rollers which may be readily adjusted. In my construction the side rollers are supported in arms clamped on shafts supported in the housing, said shafts being turned to move the side rollers into closed position engaging the cigar bunch. With my construction upon unclamping said arms from the shafts the side rollers may be adjusted to conform to the diameter of the steel model cigars provided for the different sizes of cigars required, at the closed position of the rollers. With prior constructions the ends of the rollers are taper pinned in the brackets wherein they are supported, and a fixture must be used for this purpose. This taper pinning is a very fragile meth- 0d of construction, and the rollers easily forced out of alignment, whereas my side rollers are supported much more rigidly by the arms mounted on the shafts supported by the housing. In this connection a further object of the invention is to provide a wrapper applying device which can be assembled more readily and in considerably less time than wrapper applying devices now used on cigar machines.

A still further object of the invention is to provide improved mechanism for driving the rollers at difierent speeds and thereby regulating the rolling speed or" the cigar bunch to suit the stretching required for different types and condi tions of the wrapper applied to the cigar bunch.

A further object is to provide a support for the bunch positioner which may be readily adjusted. For this purpose the bunch positioner is pivotally mounted on a split bracket which is clamped to a extending longitudinally of the housing. Upon unloosening the fastening connecting the separate sections of the bracket, the positionof the bunch positioner may be adjusted to accommodate different lengths or" cigar bunches.

A further object of this invention is to provide an improved mechanism for operating th tuck needle and locking it in the position wherein it holds the tuck end of the wrapper against the tuck end of the cigar bunch. In applying the tuck end of the wrapper to the cigar bunch the needle, which is normally in an upwardly inclined position, enters a notch in the bottom of the wrapper carrier on which the wrapper is suctionally retained in an outspread condition. The needle is then depressed to strip said portion of the wrapper from the wrapper carrier and hold the same against the tuck end of the revolving cigar bunch to start the winding of the wrapper about the cigar bunch. Since the wrapper carrier will be in different positions for this operation, when difierent shapes of cigar bunches are being wrapped, the needle must have different positions to be inserted into the notch in the bottom of the wrapper carrier. For this purpose the hollow bushing through which the needle projects has a narrow slot for guiding the needle, while it is being depressed, from the notch in the wrapper carrier to the tuck end of the cigar bunch. By adjusting my bushing circumferentially the position of the needle can be regulated to properly enter the notch in the bottom of the wrapper carrier at the diiierent positions thereof required for different shapes of cigars.

An auxiliary object in connection with the mechanism for operating the tucl: needle is to adjust this mechanism to suit the diiierent levels at which the longitudinal axis of cigar bunches of different diameters supported by the bottom roller may be located. For this purpose the bushing is mounted in a support which is vertically adjustable to align the depressed position of the needle with the longitudinal axis of cigar bunches of different diameters. Moreover the timing of the mechanism for depressing the needle may be varied to operate the needle at the proper time required for different shapes of cigars. With different shapes of cigars the wrapper carrier operating mechanism is designed to move the wrapper carrier to the position at which the tuck end of the wrapper is stripped from the carrier, while paste is being applied to its flag end, sooner or later in the cycle of operations. Adjustment of the timing of this mechanism, together with the vertical and drownferential adjustment of the bushing to align the needle with the different locations of the notch in the wrapper carrier bottom and the longitudinal axis of cigar bunches of different diameters, will cause the needle to properly enter the notch and apply the tuck end of the wrapper to cigar bunches of various sizes and shapes.

Other objects are to enclose the operating mechanisms for the various units of my wrapper applying device in a housing which supports the rollers on an exterior portion thereof. With my construction it is possible to operate the tension plate by mechanism of the general type shown in the Halstead Patent 1,582,597. With the construction shown in the Burning Patent 2,290,171 which shows a housing enclosing various units of a wrapper applying device, a more complicated type of mechanism for operating the tension plate is required.

A further specific object in this connection is to locate entirely within the housing the shaft on which is fulcrumed the cam lever supporting the header cone or disk so that paste dropping during the operation of the flag cutter or splitter will not drip on and foul said shaft. In a somewhat similar construction for operating the header cone or disk, which is shown in the Durning Patent 2,369,777, said cam lever is fulcrumed on a portion of said shaft which protrudes from the housing and is so located that the paste will drip on and foul it. Moreover with my construction a recess may be provided in one end wall of the housing to receive a paste can located to catch the dripping paste, whereas in prior constructions a paste chute was necessary to catch the dripping paste and deliver it to a paste receptacle.

A further object is to provide a device operated by the mechanism'for separating the side rollers, for lifting the cigar off the bottom roller when the side rollers are separated to permit removal of the cigar bunch. If the cigar bunch were not lifted from the bottom roller during this operation, the rotation of the bottom roller would tend to displace the cigar transversely. Since the tuck end and head end of the cigar are supported on the tail block and header block respectively, the cigar will not be displaced but its wrapper might be injured by the rubbing of the bottom roller against it.

With these and other objects not specifically mentioned in view the invention consists in certain constructions and hereinafter fully described and set forth in the appended claims.

In the accompanying drawings which form a part of this specification:

Fig. l is a side elevation, partly in section of my improved cigar wrapping mechanism;

shaft 35 mounted in housing Fig. 2 is a plan view of the same;

Fig. 3 is an end elevation of the wrapping device as viewed from line 33 of Fig. 1, illustrating the tuck needle mechanism;

Fig. 4 is an end elevation taken from line =l-4 of Fig. 1, showing the flag cutter and header cone mechanism;

Fig. 5 is a sectional end elevation on an enlarged scale taken on line 5-5 of Fig. 1, illustrating the wrapping rollers in engagement with a cigar bunch;

Fig. 6 is a sectional end elevation taken on line 5-4 of Fig. l disclosing the wrapper roller speed change mechanism;

Fig. 7 is a sectional end elevation taken along line 7-4 of Fig. 1, illustrating the actuating means for the two upper wrapping rollers;

Fig. 8 is a sectional end elevation taken along line 83 of Fig. 1 showing the wrapper tension plate and its operating mechanism;

Fig. 9 is a sectional end elevation taken along line 9-41 of Fig. l depicting the cigar bunch positioning mechanism;

Fig. 10 is a detail end elevation of the bushing which supports the tuck needle; and

Fig. 11 is an enlarged view in perspective of the bushing 88 for the tuck needle.

Referring to the drawings which illustrate a cigar bunch wrapping mechanism exemplifying the invention and provided with a housing 12 carrying a horizontal cam or drive shaft M supported by suitable bearings located in the end walls of said housing. The cam shaft H3 is driven in a counter-clockwise direction indicated by the arrow in Fig. 6 in a suitable manner (not shown). The drive gear 18 (Figs. 1 and 6) which is secured to the shaft M, meshes with the intermediate gears 29 and 22. A hub "is is loosely mounted on the drive shaft Hi. Screws 25 passing through elongated slots in the inner ends of arms 26 and 28 and threaded into hub 24 secure the arms 26 and 28 to hub 2d. On the outer ends of arms 26 and 23 are revolubly mounted the

intermediate gears

20 and 22. .A 52 supports a pinion 32 engaging with either or neither of the intermediate gears or pinions 2c and 22, de pending on the position of the speed control lever 33.

The speed control lever 33 is fixed to a shaft 34 which passes through and is supported by the end wall of the housing 12. This shaft 34 has an eccentric portion 36 on its inner end engaging a slot 38 of an arm 40 provided with a hub 52 which is integral with arm Q9 and integral with the hub 2 Therefore, by manually positioning control lever 33 either gear 26 or 22 may be brought into mesh with the gear 32. Gear 22 is a wide faced gear having the same number of teeth at full width whereas gear 2!, mounted sied by side or made in one with gear 2%, has one tooth less than gear 28. Since gear 2! has one tooth less than gear 28, a choice of speeds is possible which will be sufiicient to regulate the rolling speed of the cigar bunch in a manner hereinafter described, to suit the stretching required on different grades and conditions of wrappers. lhe eccentric portion 36 of shaft 3% has a definite limited throw which is sufficient to disengage either

gear

20 or 22 from gear 32 but is not sufficient if gear 32 is made considerably larger or smaller as is necessary for different models of cigars. Upon unloosening screws 25 the arms 26 and 28 may be adjusted upon hub 24 to cause both gears Zlland 22 to properly mesh with and be disengaged from the various sizes of the gear 32 required for different models of ci ars. Once set, however, the

arms

28 and 28 remain in the same adjusted position so long as the same model of cigar is being manufactured.

A stop pin 43 projecting from the inner face of the end wall of housing I2 and passing through a hole in hub 52 engages either side of this hole when either the

intermediate gear

20 or 22 meshes with the gear 32. The speed control lever 33 when against either of the limit pins 24 secured in the outer face of the end wall of housing I2 locks lever arm 43 through eccentric 36 against stop pin d3. When the lever 33 is midway between these limit pins 44, that is in a neutral position, neither gear 20 nor 22 will be meshed with gear 32. A pinion 46 on a shaft 50 supported in the end wall of housing I2, meshes with a spur gear 33 secured to and normally driven by the shaft 3?] (Fig. 6). position of lever 33 to turn the gear 48 and the wrapping rollers driven therefrom through a train of gears hereinafter described by a hand crank (not shown) engaging a slot 5| in the exterior end of shaft 56 (Fig. 3).

A stud 52 secured in the end wall of housing 52 supports a gear 54 which meshes with the spur gear 38 and drives a gear 56 secured on the bottom wrapping roller 58 mounted in suitable hearings in upwardly projecting lugs I2a and E21) formed on the end walls of the housing I2. The spur gear 56 meshes with the twin drive gears 60 and 52, loosely mounted on shafts 65 and 65 respectively which are also supported in bearings provided in the lugs I2a and I2b of housing I2.

Gears

60 and 62 respectively drive pinicns 38 and iii fastened to the upper wrapping rollers i2 and I4.

A cigar bunch transfer of conventional construction (not shown) is provided to deposit the cigar bunch C upon the cradle 2I2 after the two upper wrapper rollers 12 and I4 are swung into open position by the mechanism illustrated in Fig. 7. This mechanism includes a cam follower ilil mounted on a shaft BI slidably mounted in a bushing 82 in the top of housing I2. A compression spring 83 mounted in a bore in the upper end of shaft 8| and seated against a bar 85 secured to lugs 85 on the top of housing I2 urges the cam follower against the cam lobe 86a of a cam 85 secured on shaft I4. The upper end of shaft 35 is connected by the links 87 to arms 39, is clamped on

shafts

64 and 66. Arms 90, which are also clamped on

shafts

64 and 66 by screws 35 connecting the split ends thereof, support the ends of rollers '52 and F4. Arms 89 are substantially the same as arms 90 as may be seen in Fig. 1. In end elevation they appear the same as arms 96 as shown in Fig. 7. When the cam lobe 86a; of cam 36 engages the cam follower 80 the rollers 12 and M are swung into their open position. When the cam follower 80 leaves cam lobe 830. the upper rollers 12 and M are swung in the direction indicated by the arrows in Fig. '2 to engage the sides of the cigar bunch C. The inward movement of rollers I2 and I4 is limited by their engagement with the sides of the cigar bunch C. Therefore various sizes of cigar bunches will be accommodated between the rollers i2 and M, since the cam follower 80 does not engage the cam 85 after leaving the cam lobe so that the

rollers

72 and 14 are held against the cigar bunch by the pressure of spring 83. The arms 39, as may be adjusted on

shafts

64 and 66 after the screws 9| are loosened, and

It is possible in the neutral while cam follower is oif cam lobe a, to engage the sides of the various steel model cigars positioned on bottom roller 56 corresponding to the cigar bunches to be wrapped. Screws 9| are then tightened and the cigar bunch may then be wrapped.

A graduated dial 92 secured on shaft I4 and a pointer 94 secured to housing I2 are provided to permit the accurate adjustment of the timing of the mechanism for operating the tuck needle which will be hereinafter fully described.

In Figs. 2, 4 and 8 is shown the tension plate mechanism which is generally similar in construction to that shown in the Halstead Patent 1,582,597. My tension plate mechanism is provided with a bracket I00 pivotally mounted on a non-rotatable shaft I02 mounted on an exterior portion of the housing I2. On a shaft I03 supported at the upper end of the bracket I00 are pivotally mounted the lugs Hi4 and I05 of a support I56. A tension plate I08 secured to support I26 is urged upwardly by a torsion spring III) located in lug I25 and having one of its ends anchored therein and its other end anchored in a collar II2 secured to one end of shaft I03. A roller H3 mounted on an extension N4 of lug we rides on a cam surface H5 formed on the upper end of an arm IIii which is pivoted on a stud I ii secured in an arm I I8 fastened on shaft I62. A torsion spring II9 (Fig. 2) whose ends are connected respectively to the stud II! and the hub of arm I it normally maintains the latter in a position wherein the inner end of cam surface EIS underlies roller II3. Bracket m3 is urged inwardly by a compression spring I20 seated in a socket in housing I2 and engaging a lug I2! on the lower end of bracket I30. One arm of a bell crank lever I22 pivoted on shaft I32 engages a stop-screw I24 threaded into bracket we. The other arm of bell crank lever I22 extends through a slot I25 (Figs. 1 and 8) in housing I2 and carries a cam follower 26 which engages the periphery of a cam I21. Cam I2! has adjustable cam sections I28 and Hill which are mounted on shaft I4, and cam follower I23 is held in engagement therewith by a tension spring I32. It will be noted that cam I2! is located within housin I2 and serves to operate the tension plate mechanism.

An adjustable stop-screw I34 threaded into bracket Idfi and arranged to engage housing l2 limits the extent to which the bracket IilIi may be urged inwardly by spring I20 during the rotation of cam I27. A link I36 pivotally connected to the upper end of lever I22 has an elongated slot I3! (Fig. 8) engaging a stud I38 on link H6. During the inward movement of the upper end of lever I22 the outer end of slot I31 engages the stud I38 whereby arm HE is swung inwardly with bracket I09. Therefore the roller II3 rides on the inner end of cam surface H5 until the stop-screw I34 on bracket I36 during the inward movement of the latter engages the housing i2 as shown in Fig. 8. The continued inward move ment of the arm IE6 due to the displacement of link I36 by bell crank I22 moves the arm I I6 relative to bracket sea. The outer end of cam surface I I5 is thereby moved underneath roller H3 and the support I06 is swun upwardly to allow the tension plate I88 to guide the wrapper, which is suctionally held on the bottom of a wrapper carrier (not shown), while said wrapper is being removed from the carrier by the rotation of the cigar bunch C and wound about the cigar bunch. During the outward movement of the upper end of lever I22 the outer end of slot I36 engages the stop-screw I39 on arm H8 and displaces the latter outwardly relative to bracket I to permit the inner end of cam surface II to reengage roller IIS and thereby swing support I06 downwardly with tension plate I08. The upper end of lever 522 reengages the stop-screw I24 and swings the bracket I00 outwardly to its initial position while the link I I6 continues its outward movement.

A header block I40 (Figs. 1, 2 and 4) which is of conventional construction, such as disclosed in the Halstead Patent Re. 20,355, has a concave face fitting the head end of the cigar bunch C deposited on the bottom wrapping roller 58 between the

upper rollers

12 and 14. The header lock :45 is secured in the lug 42a of the housing I2. The tail block or tuck support I4! (Figs. 1 and 2) is secured to the uper end of a split bracket i6 2 hereinafter described, through which the bottom roller 58 projects. Tail block I41 has a concave face fitting the tuck end of the cigar bunch C.

In Figs. 1, 2 and 9 there is shown a bunch positioner mechanism operated by a cam I42 secured on shaft I4 and acting on a cam roller 83 supported on the inner end of a cam lever 255 which projects through a slot I45 in housing I2 and is fulcrumed on shaft 52. A torsion spring I86 having its ends anchored in the hub of lever I44 and a collar 141 secured on shaft 562 keeps the roller I53 in contact with the periphery of the cam 502. A vertical shaft I48 is connected to the cam lever bid by a block I50 pivoted on lever I54 and having a bifurcated portion into which the lower end of shaft I 58 extends. A pin I52 pivotally connects the bifurcated portion of block I50 to shaft I48, a cotter pin i534 passing through the projecting end of i52. On the upper end of shaft I48 is provided a horizontal U-shaped channel member A bunch positioner arm I58, which has an elongated operating face I58a, is pivoted on a shaft 560 supported in bracket I64. Shaft I60 has a projecting portion provided with a finger 62 riding in the channel of member I56 and thereby turning the shaft I60 as a result of the vertical movement of shaft Hi8. Thus the operating face I58a of arm I58 will engage with the tuck end of the cigar bunch C to position the same longitudinally in the required position after it has been deposited upon the cradle 2I2 with its ends supported on the header block I40 and the tail block MI. The sections of the split bracket I84 are held together by a screw I65 and thereby secured to a T plate I66 fastened to the top of housing I2. Upon unloosening the screw the bracket I54 may be adjusted to accommodate different lengths of cigar bunches. It may be noted that with the horizontal arrangement of my screw I65 it is much more accessible than the vertical fastenings of prior constructions for supporting the bunch positioner.

In the cycle of operations for wrapping a cigar bunch the wrapper to be applied to the bunch is brought to a position directly above the wrapping rollers by a wrapper carrier (not shown). In order to remove the tuck end of the wrapper rem the wrapper carrier and apply it to the bunch, a cam operated tuck needle I6! is supported by a bifurcated member I68 pivoted on a horizontal shaft I10 supported in lugs I12 of the housing I2. A torsion spring I14, whose outer end is anchored in a collar I15 secured on shaft 118, urges the bifurcated member I68 to a retracted'position. Adjustably mounted on the free end of the arm I68 is a plate I16 which is slotted to provide arms extending on either side of tuck needle I61 in the space between the adjustable stop I18 and the adjustable guide I which are secured on the tuck needle. An annular cam I82 is mounted on a hub I83 keyed to the endof the drive shaft I4 projecting from the housing I2. Cam I82 is provided with a cam track engaging the cam roller I88 mounted on arm I85 of member I68 to rock the arm I68 forwardly against the resistance of spring I14 and thereby move the tuck needle I61 forwardly through a hollow bushing I88 wherein the inner end of the needle is supported. Needle I61 is normally maintained in an upwardly inclined position by a counterweight IQI (Fig. 3) on the outer end thereof against the upper end of slot I881) in bushing I88. Bushing I88 is supported in the cover bracket I90 and has a conical recess I88a in its outer end and a slot I881) extending from the apex of the recess IBM to the inner end of the bushing, through which the needle I61 projects. Ihe slot I88?) has a predetermined shape shown in Fig. 10 to guide the needle, when it is depressed from its normal upwardly inclined position, from the notch in the bottom of the wrapper carrier to the tuck end of the cigar bunch C, whereby the flexible tip I92 of the needle will apply the tuck end portion of the wrap-per to the tuck end of the cigar bunch.

The cover bracket I90 is secured to the lug I211 of housing l2 by screws I93 passing through elongated slots Ilhi of bracket I98 and threaded into said lug I2b. Bracket I50 is provided with a vertical channel I89 extending along its inner face upwardly from its lower end, as shown in Fig. l, and terminating adjacent the upper end of the bracket let A vertical slide I85 is slidably mounted in channel I89. A compression spring 531 interposed between the upper end of channel 289 and the upper end of slide I95 maintains a cam roller I96 supported on the lower end of slide I95 in postion to engage with the lobe ISM of a cam track I91 formed on cam I82. Cam I91 has an annular construction and is integral with cam I82. A member I93 secured to slide I85 by a screw I89 (Fig. 1) projects upwardly beyond the upper end of bracket I98. Needle I81 projects through a vertical slot I98a formed in the upper end of member I98.

After the tip I92 of the needle has been inserted into the notch in the tuck portion of the bottom of the wrapper carrier (not shown) during the forward motion of member I 68, the attached plate I16 bears against the base of guide I80 to move it into contact with conical recess I88a in bushing I88. In this position, the flat base of guide I88 is in angular contact with plate I16, the plate contacting the top portion thereof. Further movement of plate I18 results in tilting guide I80 with the needle into a horizontal position, since the now vertical plate I16 will bear solidly against the flat base of guide I80. The cam follower I96 then rides off the cam lobe I91a of cam I91, and the slide I95 moves downwardly and thereby locks the needle in its horizontal depressed position. The tuck end portion of the wrapper is thus stripped from the wrapper carrier, whereon the wrapper is suctionally retained, and held against and wound about the tuck end of the cigar bunch C while the latter is revolved by

rollers

58, 12 and 14 approximately 1%; revolutions. The needle is then withdrawn horizontally by the engagement of plate I16 on the member Ifit with the collar I18 on the needle. The wrapper is guided and held against the bottom of the wrapper carrier by the tension plate I96 to maintain the proper tension of the wrapper while the remainder thereof is spirally wound about the cigar bunch C. Reference may be had to my prior Patent 2,235,857 and the Hale-toad Patent 2,375,355 for a suitable construction of the wrapper carrier (not shown) and suitable mechanism for moving the wrapper carrier in a predetermined path while the wrapper is spirally wound about the cigar bunch C.

Mechanism is provided to permit adjustment of the timing of the operation of the tuck need e whereby the needle may be inserted into the notch in the carrier at the various positions thereof required for different models of cigars. For this purpose a pinion 200 (Fig. 3) has a shank revolubly mounted in a semi-cylindrical core the interior face of cam H22 (Fig. 3). Pinion 299 meshes with an external gear 2 3! formed on the periphery of the hub MS of cam 2232. 13y inserting a screw-driver in the slot in the outer end of pinion 299 and turning the latter the cam i812 may be turned relatively to the hub I83. The operation of member its will be advanced or retarded and the needle IE? will be depressed and locked sooner or later in the cycle or opera-- tions. The shank of pinion 299 may then be locked by a set screw 202a threaded into the cam :92.

The notch in the bottom of the wrapper carrier will be adjusted to be in different positions for difierent models of cigars. Therefore, needle E57 must be adjusted to enter said notch at the various locations thereof required for different models of cigars. For this purpose the bushing 188 is circumferentially adjustable in the bracket I90 to cause the top of the slot i321; thereof to displace the needle transversely to the position required to enter the notch in the wrapper carrier bottom. This adjustment never exceeds a few degrees, since a slight movement at this point is greatly exaggerated at the needle tip I92 and is sufiicient for all standard sizes of cigars. It may be noted that the lower end of slot i88b is at the centerbf the bushing and accordingly in the various adjusted positions of bushing I 88 coincides with the horizontal depressed position of the needle. Therefore, the needle in being depressed from the various transversely adjusted positions thereof will apply the tuck end portion of the wrapper to the same portion of the tuck end of the cigar bunch. When the needle i6! is in the lower end of the slot 52% it is concentric with bushing 13% and hence its depressed position is unaffected by the adiustment of the bushing. After the bushing its is circumferentially adjusted it is locked in position in bracket E99 by a set screw (not shown).

Upon unloosening the screws 522 securing the bracket are to the lug I2b of housing iii, the bracket 96 may be moved vertically to adjust the bushing l 88 vertically to align the horizontal depressed position of the tuck needle with the longitudinal axis of the cigar bunch. The spring it! urges the slide bar I95 and its cam roller downwardly. A needle locking member E92 ecured. to slide bar !95 locks the needle the bore of bushing slot i881) when the slide is in lowered position. The lobe I91a of the c i9? has suliicient stroke to lift the locking i98 by means of the cam roller I96 and bar M5 to release the needle at the highest possible adjusted position of the bushing I88. This adjustment is necessary when cigar bunches of difierent diameters are to be handled, since the bottom of the wrapper carrier will be higher or lower in accordance with differences in the diameter of the cigar bunch to be wrapped. This adjustment will permit the tuck needle I67 to strip the tuck end portion of the wrapper from the wrapper carrier and apply it to the tuck end of cigar bunches of various diameters.

When all but the flag end of the wrapper is removed from the wrapper carrier, the flag end of the wrapper to which paste was previously applied by suitable mechanism (not shown), such illustrated in Shedlock Patent 863,106, is blown down from the wrapper carrier by suitable mechanism such as shown in the Carlson Patent 2,292,361. The paste on the flag end of the wrapper causes it to adhere to the tension plate lot and the lug 99a of the latter, as the flag end is drawn over the tension plate after being blown down from the wrapper carrier.

The construction of the flag cutter is similar to that shown in the Burning Patent 2,369,777. My fiag cutter includes a stationary knife blade 292 secured to one end of a bracket 294 which corresponds to the bracket II! of Durning Patent 2,369,777. The other end of my bracket 204 is secured on a sleeve 296 clamped in the outer end of an arm 298 pivoted on a stub shaft 2l0 mounted in the lug file of housing I2. On the inner end of a shaft 2E3 revolubly mounted in sleeve 29% is secured the hub of a double-blade knife 2L2. On the outer end of shaft M3 is secured a driven member ZIB which is normally out of engagement with a driving member or pulley 2 l8. Driving member 2I8 is driven from another unit of the cigar machine (not shown) by an elastic belt 2 i9. Driving member 2| 8 is mounted on a shaft 2229 supported by an arm 222 mounted on. one end of a shaft 224 supported by housing I2.

The mechanism for raising the arm 222 to cause the pulley m to engage and drive member 2855, and thereby revolve the knife 2M to slit the flag end of the wrapper, is unlike the corresponding mechanism shown in the Durning Patent 2,369,777 in that my cam lever 226 is not bifurcated. Cam lever 226 is mounted on the other end of shaft 222 and carries a cam roller 22! engaging a cam 228 secured on shaft I l. The cam 228 has a predetermined configuration to maintain the pulley 288 in a lowered position out of engagement with member 2I6 on the shaft 253 carrying the knife 254. Although cam lever 226 is not bifurcated (unlike the corresponding cam lever 129 of the Durning Patent 2,369,777) my 235 (corresponding to the finger 128 of said Durning Patent) is pivoted on the lever226. A tension spring 232, which is connected to posts the finger 239 and lever 226, maintains the finger 222 in operative position. A earn 234 mounted. on shaft Id at one side of cam 228 has configuration to engage and lift finger'idii and thereby raise pulley 2l8 into engagement with member 2I6 to effect the cutting of the end of the wrapper. During this operation the cam roller 22'! is lifted off cam 228. When finger 2% drops off the lobe 224a of cam 232 the pulley 2H3 is disengaged from the driven member Qifi and a stop screw 236 on arm 222 drops into engagement with a pin 239 secured in housing 52. Since the construction of my cam is similar to the corresponding earn 132 of the above-mentioned Burning Patent 2,369,777, further description thereof is deemed unnecessary. It may be noted that the reengagement of cam 258 which is normally held in engagement with the free end of cam lever 226 by a torsion spring 2550 mounted on shaft 255 and having its ends anchored in the hub of lever 25 i and a collar 262 secured on shaft 256. The header cone 2513 is thereby maintained out of operative position until the finger 238 rides off the cam lobe 234:: of

cam 234. and thereby disengages the cam lever 225 from the arm 258 of the lever 25%. Thus the torsion spring 285 will swing the lever 25d upwardly and press the header cone 256 against the slit flag end of the wrapper. The flag end of the wrapper will be applied to head end of the cigar bunch C. The header cone will thus serve to press and smooth and thereby finish the application of the wrapper to the cigar bunch C.

It will be noted that the shaft 255 is mounted within the housing l2. Therefore, when the shaft 255 is covered by a removable section (not shown) of housing 52, it will not be fouled by excess paste dripping from the flag end of the wrapper.

In the operation of my wrapper applying device the tuck end of a wrapper W (Fig. is stripped from a wrapper carrier (not shown) and wound about the tuck end of the cigar bunch C by the tuck needle 16?. The remainder of the wrapper is guided over the tension plate 268 while being wound about the cigar bunch by the rotation thereof produced by rollers 55.3, 12 and 14 until the flag end of the wrapper is blown down from the wrapper carrier upon the tension plate. The flag end of the wrapper is then slit by the coaction of the knives 262 and 2M and applied to the head end of the bunch by the header disk 259 to form a cigar.

The side rollers 12 and M are then moved outwardly away from the cigar. The cigar is now lifted off the bottom roller 58 by mechanism, which will now be described, into position to be picked up by the cigar transfer (not shown) and removed. A pair of U-shaped lift bars 2l2 (Figs. 1 and 5) have bifurcated ends 2!! engaging circumferential slots in eccentric collars 2M clamped to shafts 54 and 65 by screws 2E5 passing through the split portions of collars 2M. Thus the bars 212 will be raised and their ends will lift the cigar off the roller 58 when the shafts 6G and B6 are turned to disengage the upper wrapping rollers 72 and i from the sides of the cigar to permit easy grasping and removal thereof by the cigar transfer (not shown). The position of collars 2 l4 upon

shafts

6 and 66 may be regulated after unloosening the screws 2l5, to regulate the distance the cigar is lifted by bars 214.

What is claimed is:

1. In a device for applying a wrapper to a cigar bunch, the combination with a revoluble bottom roller adapted to support a cigar bunch, of a pair of revoluble side rollers adapted to engage the sides of said cigarbunch, mechanism for moving said side rollers into engagement with the sides of a cigar bunch supported on said bottom roller, means for simultaneously driving said bottom and side rollers to revolve said cigar bunch, said mechanism including a rocker shaft, arms adjustably mounted on and about said shaft and supporting said side rollers at each end thereof and being adjustable to vary the positions of said side rollers along their length at their ends on and about said shaft permitting the accommodation of cigar bunches of various diameters between said side rollers without changing the diameter of said bottom roller, and said roller driving means operating to drive said rollers in the various adjusted positions thereof.

2. In a device for applying a wrapper to a cigar bunch, the combination with a support, of a horizontal bottom roller revolubly mounted in said support and adapted to support a cigar bunch about which a wrapper is to be spirally wound, a pair of shafts revolubly mounted in said support, a plurality of arms adjustably mounted on and about each of said shafts, a pair of opposed horizontal side rollers revolubly mounted in each of said arms and adapted to engage the sides of a cigar bunch supported on said bottom roller, said arms being adjustable on and about said shafts permitting the accommodation of cigar bunches of various diameters between said side rollers, means for turning said shafts to move said side rollers into engagement with the sides of a cigar bunch, and mechanism for simultaneously driving said bottom roller and side rollers to revolve said cigar bunch during the application of the wrapper thereto while said side rollers engage the sides of said cigar bunch.

3. In a three roll device for applying a wrapper to a cigar bunch, the combination with a revoluble bottom roller adapted to support a cigar bunch about which a wrapper is to be spirally wound, of a pair of revoluble side rollers adapted to engage the sides of said cigar bunch, mechanism for moving said side rollers into engagement with the sides of a cigar bunch supported on said bottom roller to wind a wrapper spirally on said cigar bunch, means for simultaneously driving said bottom and side rollers to revolve said cigar bunch while the wrapper is being wound spirally thereon, said mechanism being adjustable to vary the positions of said side rollers relative to each other to accommodate cigar bunches of various diameters between said side rollers without changing the diameter of said bottom roller, and said roller driving means operating to drive said side rollers in the various adjusted positions thereof; said mechanism including a shaft, supports adjustably pivoted to said shaft and supporting said side rollers, a vertically reciprocable member connected to said shaft to oscillate it, a rotary cam, a cam follower on said member, the periphery of said cam having a predetermined configuration to engage said cam follower and thereby displace saidmember to oscillate said shaft to move said side rollers out of engagement with said cigar bunch, and a spring coacting with said member to move said side rollers into engagement with said cigar bunch.

4. In a device for applying a wrapper to a cigar bunch, the combinationwith a series of rollers coacting to support and revolve a cigar bunch about which a wrapper is to be spirally wound, of means for driving said rollers to'revolve said cigar bunch while the wrapper is being spirally wound thereon, said roller driving means including a drive shaft, a drive gear mounted'on and driven by said shaft, a hub mounted on saidshaft, a pair of broad faced pinions mounted on said support and driven by said drive gear, one of said pinions having a diiierential number of gear teeth at one end to provide a speed change, a gear train adapted to be driven from one end of either of said pinions and operating to drive said rollers to revolve said cigar bunch, said hub having an arm, said arm having an opening extending radially thereof a rotatable eccentric engaging said opening for turning said hub a predetermined distance in either direction relatively to said shaft to engage or disengage either of said pinions with said gear train and thereby drive said rollers at either of two different speeds and an operating lever to turn said eccentric in said opening.

5. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a vertically adjustable support on which said bushing is mounted whereby adjustment of said support will raise or lower said bushing with said needle to permit application of the wrapper to cigar bunches of various diameters.

6. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a vertically adjustable support on which said bushing is mounted whereby adjustment of said support will raise or lower said bushing with said needle to permit application of the wrapper to cigar bunches of various diameters, and mechanism for locking said needle in its depressed position at the various adjusted positions of said support.

'7. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a vertically adjustable support on which said bushing is mounted whereby adjustment of said support will raise or lower said bushing with said needle to permit application of the wrapper to cigar bunches of various diameters, and mechanism for locking said needle in its depressed position at the various adjusted positions of said support, said needle locking mechanism including a vertically movable member slidably mounted on said support, said member having an elongated slot through which said needle projects, a cam follower connected to said member, a cam adapted to engage said cam follower to move said member upwardly into an ineffective position at the vari ous adjusted positions of said support, and a spring coacting with said member to move the latter downwardly and thereby lock said needle in depressed position at the various adjusted positions of said support.

8. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a support on which said bushing is mounted, said bushing having a vertical slot through which said needle projects and said slot being adapted to guide the needle into position to apply the tuck end of the wrapper to the tuck end of the cigar bunch while the needle is being depressed by said means, said bushing being circumferentially adjustable in said support to vary the position into which said needle is moved by said means without varying the position into which said needle is depressed by said means.

9. In a device for applying a wrapper to a cigar bunch, the combination with a revoluble bottom roller adapted to support a cigar bunch about which a wrapper is to be spirally wound, of a pair of revoluble top rollers adapted to engage the sides of said cigar bunch, mechanism for moving said top rollers into engagement with the sides of a cigar bunch supported on said bottom roller, to wind a wrapper spirally on said cigar bunch, means for simultaneously driving said bottom and top rollers to revolve said cigar bunch while the wrapper is being wound spirally thereon, said mechanism being adjustable to vary the positions of said top rollers relative to said bottom roller to accommodate cigar bunches of various diameters between said top rollers without changing the diameter of said bottom roller, and said roller driving means operating to drive said side rollers in the various adjusted positions thereof, a hollow bushing, a tuck needle projecting through said bushing and adapted to apply the tuck end of said wrapper to said cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle to cause it to apply said wrapper portion to said cigar bunch, and a vertically adjustable support on which said bushing is mounted whereby adjustment of said support will raise or lower said bushing with said needle to permit application of the Wrapper to cigar bunches of various diameters.

10. In a device for applying a wrapper to a cigar bunch, the combination with a slotted bushing having a substantially vertical slot extending substantially upwardly from the center thereof, of a tuck needle projecting through said slotand adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through the upper end of said slot into a predetermined position wherein it overlies the tuck. end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a support on which said bushing is mounted, said means including a movable member adapted to move said needle forwardly through said bushing into said predeter ined position, a cam follower connected to said member, a drive shaft, a cam on said drive shaft ongaging said cam follower to operate said member, and a device for turning said cam relatively to said shaft to vary the time at which said needle is moved forwardly into said predetermined position.

11. In a device for applying a wrapper to a cigar bunch, the combination with a slotted bushing having a substantially vertical slot extending substantially upwardly from the center thereof, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overli s the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a support on which said bushing is mounted, said means including a device for adjusting the upward inclination of needle, and a movable member arrange close proximity to said bushing and adapted to engage a portion of said needle adjacent said bushing at the various upwardly inclined positions thereof obtained with said adjusting device and lock said needle in the depressed position.

12. In a device for applying a wrapper to a cigar bunch, the combination with a slotted bushing, of a support on which said bushing is mounted, a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for suppor ing said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and further means for then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, said further means including a device for transversely adjusting the portion of said needle projecting from said bushing to cause the tip of the needle to be advanced into various predetermined positions, and a movable member arranged in close proximity to said bushing and adapted to engage and lock said needle in its depressed position at the various transversely adjusted positions thereof.

13. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a support on which said bushing is mounted, a tuck needle projecting through said bushing, means for depressing said needle from an upwardly inclined position into a horizontal position, and a movable member arranged to engage the top of said needle and lock it in depressed position.

l i. In a device for applying a wrapper to a cigar bunch, the combination with a hollow bushing, of a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position wherein it overlies the tuck end portion of a wrapper which is to be applied to said cigar bunch and then depressing said needle into a horizontal position to apply the tuck end of said wrapper to said cigar bunch, and a support and mechanism for locking said needle in its depressed position, said needle locking mechanism including a vertically movable member, slidably mounted on said support, said member having an elongated slot through which said needle projects, a cam follower connected to said member and a cam coacting with said cam follower and operating said member.

15. The combination with a support, of a hollow bushing mounted in said support and adapted to support in an upwardly inclined position a tuck needle projecting through said bushing, said bushing havin a portion adapted to displace said needle transversely to a predeter mined position while it is being depressed from an upwardly inclined position to a horizontal position, and said bushing being oircumferentially adjustable in said support to cause said portion of said bushing to displace the needle transversely to various upwardly inclined positions and guide said needle from said various upwardly inclined positions to the same predetermined horizontal position while the needle is depressed to the horizontal position.

16. In a three roll device for applying a wrapper to a cigar bunch, the combination with a revoluble bottom roller adapted to support a cigar, of a U-shaped cradle mounted about said bottom roller for movement transverse thereto and having a portion adapted to lift the cigar bunch from said bottom roller; of a pair of revoluble side rollers adapted to engage the sides of said cigar bunch, mechanism for moving said side rollers into and out of engagement with the sides of a cigar bunch supported on said botzorn roller said mechanism consisting of rocker shafts, arms secured to said shafts and supporting said rollers on and about said shafts, and movable members secured to said shafts engaging and supporting said cradle about said bottom roller to lift said cradle with said cigar bunch when said rocker shaft is oscillated and the side rollers are moved thereby out of engagement with the sides of the cigar bunch and to lower the cradle when said side rollers are moved into engagement with the sides of the cigar bunch.

17. In a device for applying a vrapper to a cigar bunch, the combination with a revoluble bottom roller and then moving said side rollers pair of revoluble side rollers adapted to engage the sides of said cigar bunch, mechanism moving said side rollers into engagement with the sides of a cigar bunch supported on said bottom roller and then moving said side rollers away from the sides of said cigar bunch to per mit removal thereof, and a device operated by said mechanism for lifting said cigar bunch from said bottom roller when said side rollers are moved away from the sides of the cigar bunch, said mechanism including a pair of revoluble shafts and supports for said side rollers pivoted on said shafts, and said device including eoce-n collars secured on said shafts and a cradle hay bifurcated portions engaging said eccent ic collars and adapted to engage and lift the oi bunch ofi the bottom roller when said sh .l are turned to disengage said side rollers from the sides of the cigar bunch.

18. In a device for applying a wrapper to a cigar bunch, the combination with a serie of rollers co-acting to support and revolve a cigar bunch about which the wrapper is to be spirally wound, means for driving said rollers to revolve said cigar bunch while the wrapper is being spirally wound thereon, said roller driving means including a drive shaft, a drive gear mounted on and driven by said shaft, a support mounted on said shaft, said support including a sleeve on said shaft, a pair of arms secured to said support, a pair of pinions mounted on said arms and driven by said drive gear, one of said pinions having a different number of gear teeth than the other pinion for engaging said driven gear to provide a different gear ratio than said other pinion, a gear train adapted to drive said rollers to revolve said cigar bunch, said gear train including a driven gear arranged to be driven from either of said pinions, a third arm integral with said support, an opening in said arm, a rotatable eccentric engaging said opening to turn said support in either direction relative to said shaft to engage or disengage either of said pinions from said gear train, and stop means to resist the action of said eccentric at the limit of its throw to effect locking engagement therewith whereby said support is locked when either of said pinions is in engagement with said driven gear.

19. In a device for applying a wrapper to a cigar bunch, the combination with a series of rollers co-acting to support and revolve a cigar bunch about which the wrapper is to be spirally wound, means for driving said rollers to revolve said cigar bunch While the wrapper is being spirally wound thereon, said roller driving means including a drive shaft, a drive gear mounted on and driven by said shaft, a gear train adapted to drive said rollers to revolve said cigar bunch, said gear train including a, primary or driven gear, a device loosely mounted on said shaft for guiding said gear train to said primary driven gear, said device including a support on said shaft, a pair of arms each, separately adjustably secured to said support and extending radially thereof, each of said arms being adjustable on said support relative to each other, a pair of pinions mounted on said arms and driven by said drive gear, one of said pinions having a different gear ratio than the other pinion whereby on rotation of said sleeve one of said pinions will engage said primary driven gear, a plate secured to said support, said plate having a radial member, a radial slot in said member, a rotatable eccentric engaging said slot for moving said plate in either direction relative to said shaft, and stop means to limit the movement of said plate in either direction at the limit of throw of said eccentric to resist the action of said eccentric to effect locking engagement therewith.

20. In a device for applying a wrapper to a cigar bunch, the combination with a series of rollers coacting to support and revolve a cigar bunch about which the wrapper is to be spirally wound, means for driving said rollers to revolve said cigar bunch while the wrapper is being spirally wound thereon, said roller driving means including a drive shaft, a drive gear mounted on and driven by said shaft, a support mounted on said shaft, said support including a hub, a pair of angularly spaced arms mounted on said hub, a pair of pinions mounted on said arms and driven by said drive gear, a gear train adapted to drive said rollers to revolve said cigar bunch, said gear train including a driven gear arranged to be driven from either of said pinions, one of said pinions having a different number of gear teeth than the other pinion for engaging said driven gear to provide a different gear ratio than said other pinion, a device for oscillating said hub a predetermined distance in either direction relative to said shaft to engage or disengage either of said pinions with said gear train and thereby drive said rollers at either of two different speeds, and mean to adjust said arms relative to said hub to accommodate different sizes of said driven gear so that the amount of mesh between said driven gear and said pinion is established by said predetermined distance through which said hub is oscillated.

21. In an apparatus for applying a Wrapper to a cigar bunch, the combination with a hollow bushing, of a support for said bushing, a tuck needle projecting through said bushing and adapted to apply the tuck end of a wrapper to a revolving cigar bunch, means for supporting said needle in an upwardly inclined position and moving it forwardly through said bushing into a predetermined position and then depressing said needle into a horizontal position, and a slidable element arranged in close proximity to the position of the needle supported in said bushing for engaging the needle and engaging the top of and varying the upper position of said needle.

22. In an apparatus for applying a wrapper to a cigar bunch, a bearing, a hollow rotatably adjustable bushing within said bearing having a recessed portion and an elongated slot therethrough, and a tuck needle in said slot and projecting through said bushing and adapted to be supported in an inclined position by said bushing, said recessed portion and slot of said bushing being adapted to displace said needle transversely to a predetermined position while it is being depressed from an upwardly inclined position to a horizontal position.

23. In an apparatus for applying a wrapper to a cigar bunch, a bearing, a hollow rotatably adjustable bushing within said bearing having a recessed portion and an elongated slot therethrough, and a tuck needle in said slot and projecting through said bushing and adapted to be supported in an inclined position by said bushing, said recessed portionand slot of said bushing being adapted to displace said needle transversely to a predetermined position while it is being depressed from an upwardly inclined position to a horizontal position, said portion of said bushing operating to guide said needle transversely to a predetermined position when the needle is moved from the horizontal depressed position to an upwardly inclined position.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date Re. 20,355 Halstead May 4, 1937 188,559 Winsor Mar. 20, 18 77 340,741 Tanner Apr. 27, 1886 628,677 Russell July 11, 1899 664,949 Herbert Jan. 1, 1901 851,681 Luckett Apr. 30, 1907 1,267,734 Anderson May 28, 1918 1,608,071 Rundell Nov. 23, 1926 1,966,548 Granstedt July 17, 1934 2,006,113 Rober June 25, 1935 2,236,651 Rober et al. Apr. 1, 1941 2,281,095 Clausen Apr. 28, 1942 2,290,171 Durning July 21, 1942 2,304,046 Durning Dec. 1, 1942 2,369,777 Durning Feb. 20, 1945 5,30 Randolph Julv 1:2. 194;: