US851213A

US851213A - Gearing.

Info

Publication number: US851213A
Application number: US29322105A
Authority: US
Inventors: Milton H Ballard
Original assignee: TRIPP FRUIT WRAPPING MACHINE CO
Current assignee: TRIPP FRUIT WRAPPING MACHINE CO
Priority date: 1905-12-26
Filing date: 1905-12-26
Publication date: 1907-04-23
Anticipated expiration: 1924-04-23

Description

PATENTED APR. 23, 1907. M. H. BALLARD.

GEA RING.

APPLICATION FILED DEG.26,1905.

2 SHEETS-SHEET 1.

Mi messes;

PATBNTED APR. 23, 1907 M. H. BALLARD.

GEARING.

APPLICATION FILED DEG.26, 1905.

2 SHEETSSHEET 2.

11/5222 ess es 1 172M872 $0? .unirox 11. Batman, or rrxx, nAssAenesnrrs, AssicNoR TO TRIPP FRUI T WRAPPING MACHIN ['1 A COItPORAIION OF MAINE.

(();, OF SAN FRANCISCO, CALIFORNIA,

. GEARING.

Specification of Letters Patent.

Patented April 23, 1907.

Application tiled December 26,1905. Serial No. 293,221.

Be it known lhat l. Mnxroxll. Banner), of Lynn, county oi Essex, State oi Massachusetts, have invented an Improvement in Gearing, ol which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to' gearing especially adapted to be employed for operating the paper 'l'eeding device oi a wrapping machine.

In certain forms oi wrapping machines, as "for instance, in the wrapping machine shown in Letters Patent No. 516,136 dated March 6,

1894, the paper, in strip form, is taken from. a reel and fed forward by means oi suitable intermittinglv operated feeding rolls. In said patent the means l'or operating the -feeding rolls to intermittingly feed forward the paper, is connected with one of said rolls by a pawl and ratchet.

In practice the machine is run at a very high speed and as a result the pawl and ratchet connection soon wears out and this invention has for its object to provide improved means ol" greater durability for intermittingly operating the paper feeding rolls.

The invention consists essentially of means for intermittingly operating the feed rolls comprising essentially a pair of spiral gears in engagement with each other and revolvablc on parallel axes, one of which is movable longitinlinall on its support and the other is restrained from longitudinal movement, means for revolving said restrained gear, first. in one and then in the other directionto thereby revolve the other gear and also to move it longitudinally on its support, movable clutch member connected with said. longitudinally movable gear and a fixed. clutch member connected. with one of the feed rolls into and out of engagement with which the aforesaid clutch member is movable.

Figure 1 shows-in side en-vation a paper feeding device for wrapping machines emembodying this invention. Fig. 2 is a front elevation of the feeding rolls and actuating device therefor. Fig. '3 is a side view of the feeding rolls and actuating device therefor. Fig. 4 is an enlarged longitudinal section of the driven spiral gear of the'pair of spiral gears which constitute the essential elements of the actuating device. Fig. 5 is a side view of the driven spiral gear. Fig. 6 is a front view of the actuating device shown in Fig. 2, the clutch members being in engagement.

41 and -12 represent the two paper feeding rolls, which are j ournaled in suitable bearings and arranged one above the other to receive the strip of paper between them and feed it along the rolls are rotated. Spur gears 51, 52 are secured respectively to the

rolls

41, 42, which engage each other, said gears enabling one oi the rolls to be driven positively by the other roll. As herein shown the lower roll 42 is designed. to serve as the driving roll, the upper roll 41 being driven by it. The driving roll 42 is designed to be rotated intermittingly, so that the strip of paper will be fed forward intermittingly, and its end portion repeatedly presented to a paper-cutting device, not shown, which severs the strip to from wrappers. One member of a clutch is secured to the journal of the driving roll 42, which is herein shown as a disk 60, having ratchet teeth formed on its outer side or face, said disk constituting the fixed clutch member. The movable clutch member consists of a like dish 61 mounted to slide on said journal into and out of engagement with the fixed clutch member 60, said disk 61 having ratchet teeth formed on its side or face adjacent the fixed clutchmember. When the movable clutch member is slid along'on the journal into engagemen t with the iixed clutch member, the

two ratchet toothed faces of said members are brought into engagement. The mov able clutch member 61 is also rotatably mounted on said journal, so that when slid along their-on and brought into engagement with the fixed clutch-member 60, it may be rotated to rotate the driving roll 42. The

movable clutch member is secured to. one

side or face of a spiral gear 64, or is connected to said. spiral gear in such manner as to be operated by it. The spiral gear 64 is mounted on said journal, and is adapted to rotate thereon and also to move thereon longitudinally. The spiral gear 64 is engaged and driven by a spiral gear 65 which is mounted on a fixed stud or other bearing which may be provided for it and which is made wider than the spiral gear 64. A pinion 53 is also inountedon said stud which is secured to the spiral gear 65. The fined stud on which the spiral gear 65 and pinion are mounted 1s d1s posed in parallelism with the journal supportmg the s iral gear 64 and the clutchmembers, so that t e two

spiral gears

65 and 64 revolve on parallel axes; The spiral gear 65 is restrained from sidewise'or longitudinal movement on the fixed stud so that when revolved thereon it will operate to revolve the spiral earv 64 and also to move said gear sidewise or ongitudinally-on its support, or in a direction toward and from the fixed clutch member. A rack bar 54 engages said pinion 53 which is looselyconnected at one end by a link to an upright arm 55, which is pivoted at its lower end to the frame, and which has extended from it, at or near its lower end, a curved slotted arm, or it may he an arm provided with a curved slot, to which is adjustably connected one end of a bar 57, which is connected by an eccentric to the-main shaft f As the main shaftf is rotated the rack bar 54 will be reciprocated longitudinally and the pinion which it engages will be revolved first in .one and then'in the other direction and the spiral gear 65 to which it is connected will be likewise revolved and the spiral gear 64 will be revolved and also moved a ong on the journal supporting it to thereby move the movable clutch-member into and out ofengagement with the fixed clutch member and to revolve it, such sidewise or dongitudinal movement on the spiral gear 64 Y is revolved intermittingly and in the same.

' being due to the inclined formation of the teeth of the spiral gears. While the movable clutch member is in engagement with the fixed clutch member and 1s revolving, the roll 42 will be correspondingly revolved and while said movable clutch member is out of engagement with said fixed clutch member the roll 42 will remain at rest. Thus the roll direction. The rack bar 54 operates to turn the s iral ear 65 a number of revolutions to there y r0 ate the driving roll 42 a number of revolutions to feed forward a considerable length 'of paper and by ad usting the con nection of thebar 57 with the curved slotted extension on the upright arm the number of revolutions given. to the spiral gear 65 may be regulated and the length of paper which is fed forward thereby deternni'iod.

Byemploylng spiral gears, as contrasted with spurgears, or of other forms, the driven. gear. 64 is given these two movements, 5 'andresults in the PI OIlLlCl lOH of an actuating device for intermittingly rotating the roll 42,

which is Very simple and has great durability. 3 Ga 513191011661 side of the spiral gear 64 a spring 66 .is preferably provided, which will be contained in a circular groove formed therein,.onc end of which bears against said spiral gear 64 and the other end of which bears against a fixed stop, the action of said spring being to move the spiral gear 64! in a direction to cause the movable clutch memher to engage the fixed clutch member, and while I prefer to employ the spring for this purpose which results in more speedily moving the movable clutch member into engagement with the fixed member, I find in practice that it may be omitted, as the driven spiral gear will be moved loiigitudinally as well as rotarily by the driving spiral gear, and produce an elllciont actuating device.

Having thus described my invention, what I claim as new-and desire to secure by Letters Patent is: I

1. The combination with a member adapted to be rotated intermittingly and provided with a clutcl'i-mcmber, of a pair of spiral gears in engagement with each other and rcvoluble on parallel axes, one of which is movable longitudinally on its support and provided with a clutch-member, and the other is restrained from longitudinal movement, meansfor revolving said restrained gearllrst in one and then in the other direction to thereby revolve the other gear and also move it longitudinally on its support and move the clutch member which is connected with it and the clutch-member on the memher to be rotated into and out of engagement, substantially as described. 7

2. The combination with a member adapted to be rotated intermittingly and provided with a clutch-member, of a pair of spiral gears in engagement with each other and rev oluhlc on parallel axes, one of which is movable longitudinally on its support and providod with a clutch-member, and the other is restrained from longitudinal movement, a pinion connected with the restrained gear, a lmigitudinally reciprocating bar engaging it for revolving said restrained gear first in one and then in the other direction, to thcreby revolve the gear which it engages and also move said gear longitudinally on its support and move the clutch-membcr connected with it and the clutch-member on the mem- 'i'\lILTON ll. BALLARD.) Witnesses:

B. J. .\"orns, ll. ll. Davis.

her to be rotatrd into and out of engagement,