US1748344A - Registering mechanism - Google Patents

Description

Feb. 25, 1930.

W. T. HATMAKER ET AL REGISTERING MECHANI SM Filed June 21, 1924 2 Sheets-Sheet l v INVEN Toms. WILL/AM THATMAKEE! EMA. E E/CKMEYER.

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Feb. 25, 1930. w, HA'fMAKER ET AL 1;.748344 REGISTERING MECHANI SM 2 Sheets-Sheet Filed June 21, 1924 ATTORNEY.

Patented Feb. 25; 1930 AUNNITED STATES PATENT OFFICE WILLIAM T, HATMAKER AND EARL E. EICKMEYER, OF DAYTON, OHIO, ASSIGNORS TO THE NATIONAL RECORDING PUMP COMPANY, OF DAYTON, OHIO, A CORPORA- TION OF OHIO REGISTERING MECHANISM Application filed June 21,

This invention relates to registering mechanism and more particularly to means for controlling the resetting of the registering devices.

One object of the invention is to provide a device which will positively prevent the overthrow of the registering device when it has been restored to its initial position.

A further object of the invention is to provide means for positively interrupting the movement of the resetting mechanism at the end of a predetermined movement thereof.

A further objectof the invention is to provide such devices which will be simple in construction, positive in their operation and of such a character that they will not be easily broken or otherwise rendered inoperative.

Other objects of the invention will appear as the mechanism is described in detail.

In the accompanying drawings Fig. 1 is a plan view of a registering mechanism embodying my invention; Fig, 2 is a horizontal sectional view taken through a portion of such registering mechanism; Fig. 3 is a vertical section taken on the line 33 of Fig. 1; Fig. 4 is a detail view of the register actuating device taken on the line 44 of Fig. 1; Fig. 5 is a detail view of the device for preventing the overthrow of the registering de vice taken on the line .5-5 of Fig. 1; Fig. 6 is a detail view of the gear connection between the resetting shaft and the register actuating shafts; Fig. 7 is a detail view of the device for interrupting the movement of the resetting mechanism; and Fig. 8 is a detail view of the indicating register. 7

In these drawings we have illustrated one embodiment of our invention and have shown the same as applied to a registering device for a liquid dispensing pump. such as the well known gasoline pumps. This registering mechanism comprises two registering devices, one a visual indicator which registers both in units and fractions thereof, in the presentinstance in gallons and quarts, and asecond registering device comprising type wheels on which a printed record of the registration may be'taken. At the end of each delivery of liquid the printing mechanism is operated to take a record of the quantity 1924:. Serial No. 721,483.

vcentrically, the outer series of indications representing" gallons and the inner-series of registrations representing fractions of gallons or quarts. Cooperating with this dial are two movable pointers 2 and 3, the pointer 2 cooperating with the outer or gallon series of indications and the pointer 3 cooperating with the inner or quart series of indications. The pointer 2 is rigidly secured to a shaft 4 which is journaled in bearings 5, 6 and 7, and y which has rigidly secured thereto a ratchet wheel 8 by means of which operative movement i imparted to the shaft and the pointer. The se 0nd, or shorter pointer 3, is rigidly secured to a sleeve 9 which is rotatably mounted about the shaft 4 within a bearing 9 and has secured to its inner end, just beyond the bearing, a pinion 10 with which meshes a gear 11 rigidly secured to a shaft 12 which is journaled in bearings 13 and 14. Secured to the shaft 12 is a pinion 15 which meshes with a gear116 rigidly secured to a sleeve 17 which is rotatably mounted on the shaft 4 and is also mounted in the bearing 6. Rigidly connected with the sleeve 17 and the gear 16 is a second ratchet wheel 18 which is arranged adjacent to, but spaced a short distance from, the ratchet wheel 8. Cooperating with the respective ratchet wheels are pawls 19 and 20 which are preferably connected one to the other so that they will move in unison and which, in the present instance, are formed integral one with the other but have their noses orcontact portions separate one from the other. These pawls are here shown as pivotally mounted upon a projection or bracket 21 extending upwardly from an actuatingarm 22 which is pivotally mounted for movement about the axis of the shaft 4 and is operatively connected with a suitable part of the dispensing apparatus which will cause the desired movement to be imparted to the pawls. In the present instance, a connecting rod 23 is pivotally connected at its upper end with the arm 22 and is connected at its lower end with the dispensing. apparatus in such a manner that it will impart to the pawl carrying arm 22 a complete oscillation upon the de-- one of the shallower recesses of that ratchet wheel the pawl for the gallons ratchet wheel will be inoperative and consequently the operation of the pawl structure will impart movement only to the quart ratchet wheel and the quart pointer 3. After the completion of three movements of the pawl structure the pawl for the quarts ratchet wheel will drop into one of the deeper recesses 24, thereby permitting the pawl for the gallons ratchet wheel to move into operative engagement with that ratchet wheel so that upon the next and fourth stroke of the pawl structure both ratchet wheels will be actuated, thereby ad- ,vancing the gallons pointer 2 one space and returning the quart pointer 3 to its zero position, as-shown in Fig. 8. The pawls are held normally in contact with the respective ratchet wheels by a spring 25, and detent pawls 26 hold the ratchet wheels against reverse movement.

Rigidly secured to the shaft 4 beyond the bearing 6 is a gear 27 which meshes with a gear 28 secured to and, in the present instance, forming apart of the gallons counter 29 of a second registering device, this second registering device being preferably composed of type wheels from which a record may be taken and being mounted upon a shaft 30.

Rigidly secured to that end of the sleeve 17 which projects beyond the bearing 6 is a gear 31 which meshes with a gear 32 rigidly secured to a sleeve 33 rotatably mounted on the shaft 30 and having rigidly secured thereto a quarts type wheel 34, of the second registering device, the gallons type wheel 29 being rotatably mounted upon this sleeve, as shown in Fig. 3. It will be apparent, therefore, that the operation of the shaft 4 and sleeve 1? W111 simultaneously actuate both registering devices. The printing mechanism which cooperates with the type . wheels 29 and 34 forms no part of the present invention and need not be here shown or described.

In order to restore the registering devices The reto their initial or zero positions after the completion of each registering operation we have provided the hubs of the gears 27 and 31 with recesses .35, thus constituting these hubs in effect one toothed ratchet wheels. The two hubs extend one toward the other but are spaced a short distance apart and rotatably mounted on the shaft 4 between these hubs is a gear 36 which'barries pawls 67 which are adapted to engage the recesses or single teeth of the respective hubs when the ear 36 is rotated in a forward direction.

he arrangement is such that when the gears 27 and 31 are rotated in a direction to advance the registering devices the pawls will ride over the hubs without interfering with their operationbut when the gear 36 is rotated in a forward direction the pawls will pick up the respective hubs and cause the two gears and consequently the'tivo registering devices to be moved to their initial or zero positions. The gear 36 is caused to make a single revolution so that it will pick up the respective hubs in any position which they may occupy and cause them to complete a single rotation. Meshingwith the resetting gear'36 is a gear 37 which is rigidly secured to a shaft 38 mounted in bearings 39 and 40 and extending beyond the bearing 40 where it is connected with a suitable operating device or handle 41. In order that the handle 41 may make more than one revolution for each rotation of the shaft 38 the handle has geared connection with theshaft 38, the latter being pro-. vided with a gear 42 which is connected through an idle gear 43-with a gear 44 mounted on a short shaft 45 to which the handle is secured.

We have provided means for positively interrupting the movement of the shaft 38 when the latter has completed a single rotation and, in the present device, we have secured to the shaft 38 an arm 46 which is preferably provided in one edge, near the end thereof, with a notch 47. A second arm 48 is rigidly secured to the shaft 38 and extends in a direction substantially opposite that in which the arm 46 extends. The two arms may, if desired, be formed integral one with the other. The second arm 48 is provided near its outer end with a projectionor pin 49. Pivotally mounted adjacent to and on an axis parallel with the shaft '38 is a stop finger 50 which is movable into and out of the path of the arm 46 and, in the present construction, has its end shaped to fit within the recess 47. Rigidly connected with the stop finger 50 is a trip finger 51 which extends upwardly to a point near the arm 48 and has its upper end inclined outwardly, as shown at' 52, and so arranged that when the nose of the finger 50 is seated in the recess 47 the inclined end of the finger 51 will lie adjacent to and in the path of the pin 49. When the stop finger 50 is seated in the recess 47 of the I arm 46 the shaft 38 is held against forward movement and in order to release the shaft a slight rearward movement is imparted thereto, a detent 53, which cooperates with a ratchet wheel 54 to hold the shaft against reverse movement, being so arranged with relation to the ratchet teeth that the shaft may move rea-rwardly a distance slightly less than the length of one of the ratchet teeth. This rearward movement of the shaft lifts the arm 46 out of engagement with the stop finger and a spring which is connected with the trip finger 51 moves the finger 50 out of line with the arm 46 and moves the trip finger 51 inwardly a corresponding distance. The reverse movement of the shaft will also cause the pin of the arm 48 to engage the inclined end of the trip finger 51 and thus positively move the stop finger to its inoperative position, in which position it will be held by the spring 55. The shaft having thus been released the operating handle and shaft may be rotated in a forward direction and as the shaft nears the completion of its rotation the pin 49 will engage the inner edge of the trip finger 51 and the two fingers will be moved in a reverse direction and the stop finger again positioned in the path of the arm 46. This movement will carry the nose of the stop-finger slightly beyond 'a position in true alinement with the notch 47 but its position will be such that it will enter the notch as the arm 46 approaches the same. After the nose of the stop finger has entered the notch the pin 49 will move beyond the end of the trip finger, thus releasing the same and permitting it to be moved by the spring 55 into line with the pin 49 and permitting the stop finger to properly aline itself with the notch 47, as shown in Fig. 7. In this manner the operation of the resetting mechanism, and of the printing mechanism which is also operated by the shaft 38, is positively interrupted after one complete operation thereof but the mechanism may, if the operator so desires, be immediately released and again operated.

Vhen the resetting mechanism is operated at a relatively highspeed and its operation is suddenly stopped at the end of a complete rotation of the shaft 38 there is a tendency on the part of the ratchet wheels 8 and 18, and their connected parts. to continue their movement, or overthrow, due to inertia, thus advancing the registering devices beyond their initial positions. To prevent this overthrow we have provided each ratchet wheel 8 and 18 with a part constituting a stop, these parts being here shown as small plates 56 rigidly secured to the adjacent faces of the respective ratchet wheels and having their outer ends pointed and so arranged as to provide a substantially radial contact portion 57. Cooperating with these stops is a detent, here shown as comprising an arm 58 pivotally mounted at its lower end on the frame of the'machine and having at its upper end a nose 59 adapted to extend between the two ratchet wheels and into the paths of both stops. The movement of this detent or stop member is so controlled by the reset ting mechanism that it will be moved into the paths of the stops after initial movement has been imparted to the ratchet wheels and registering devices and will be retained in this position until the registering devices have been restored to their initial positions and the stop plates 56 haveengaged the nose of the detent which will positively stop their movement. After the movement of the ratchet wheels and registering devices has been checked the nose of the detent is withdrawn so as to release the ratchet wheels and registering devices for operation. In the present form of the mechanism the detent or stop member 58 is actuated by a cam 60 which is mounted upon the shaft 38 and provided in one face thereof with a cam groove 61 into which extends a projection or pin 62 projecting laterally from the detent. This cam is so arranged with relation to the resetting mechanism and to the stop member that the stop member will be held normally in its inoperative position, that is, during the registering operation the nose of the detent will be out of line with the stop plates 56, thereby permiting the free rotation of the ratchet wheels. The cam groove is provided with a dwell which will permit of a slight operation of the resetting shaft 38 before the stop member will be moved into its operative position, thus allowing time for the ratchet wheels to move far enough to carry the stop plates past the nose of the detent. The detent member is then moved into its operative position and is held in this position until the ratchet wheels have completed their movement and the stop plates have engaged the nose of the detent, thereby positively interrupting the movement of the ratchet wheels and of the registering devices. In order that the detent may be withdrawn after the registering devices have been restored to their initial position the connection betweenfthe shaft 38 and the ratchet wheels is such that the ratchet wheels and registering devices will be restored to their initial positions shortly before the shaft 38 completes its rotation and the further movement of the shaft 38 and cam 60 will withdraw the detent. In the present device the resetting shaft 38 is connected with the ratchet wheels through the medium of the gears 36 and 37 and these gears are so constructed that the gear 37 may have a limited movement with relation to the gear 36 at the beginning and at the end of the movement of the shaft 38. To accomplish this the gears are in the form of mutilated gears, the gear 37 having a smooth concentric portion 63 at one side thereof which is adapted to engage and to cooperate with a concave portion or wide tooth 6 L on the gear 36. \Vhen the two gears are in their normal positions the wide or concave faced tooth 64 will occupy a position between the ends of the smooth portion 63 of the gear 37. As a result the gear 37 will rotate with relation to the gear 36 until the first tooth thereof engages the wide tooth 64 of the gear 36. ThlS engagement will bring the gear teeth into mesh and the two gears will rotate in unison until the gear 36 has com pleted one rotation, at which time the last tooth on the gear 37 will move out of mesh with the gear 36 and the concavevfaced wide tooth 64 will again enga' e the smooth portion of the gear 37 and t is latter gear will continue its movement until the rotation of the shaft 38 has been positively stopped and it is during this latter portion of the movement of the gear 37 and the shaft 38 that the detent or stop member 58 is withdrawn. During the first movement of the gear 37 with relation to the gear 36 the printing mechanism is operated so that the record will be taken before the resetting operation begins. While we have shownand' described one embodiment of our invention we wish it to be understood that we do not desire to be limited to the details thereof as various modifications may appear to aperson skilled in the art.

Having now fully described our invention,

what we claim as new and desire to secure by Letters Patent, is:

1. In. a mechanism of the character described having a registering device and resetting mechanism for said registering device, positively actuated means to stop the movement of said registering device when it has been restored to its initial position and to then release the same for operation.

2. In a mechanism of the character described having a registering device and resetting mechanism therefor, a device to 'positively stop the movement of said registering device when it has been moved to its initial position, and means controlled by said resetting mechanism to move said stop' device into an inoperative position after the movev ment of said registering device has been ing the same after said registering device has been restored to its initial position.

4. In a mechanism of the character described having a registering device andresetting mechanism therefor, a part connected with said registering device for rotation therewith, a device mounted for movement into and out of the path of said art, and means actuated by the operation 0 said resetting mechanism to move said device into a position to be engaged by said part when said registering device is moved to its initial position and to then move said device out of the path of said part.

5. In a mechanism of the character described having a registering device and resetting mechanism therefor, a part connected with said re istering device for rotation therewith, a evice mounted for movement into and out of the path of said part, and a cam operatively connected with said resetting mechanism and actin onsaid device to move it into the path 0% said part after said registering device has been moved from its initial position and to move said device out of the path of said part after said resetting device has been restored to its initial position.

6. In a mechanism of the character described having a registering device and resetting mechanism therefor, a member operatively connected with said registering device and having a part forming a stop, a detent movable into and out of the path of said stop, and an operative connection between said detent and said re istering mechanism to cause said detent to moved out of the path of said stop when said registering device has been moved to its initial position. i 7. In a mechanism of the character described having a registering device and resetting mechanism for said registering device comprising an operating device so connected with said registering device as to permit said operating device to continue its movement after the movement of said registering device has been interrupted, a part connected with said registering device, a device movable into and out of the path of said part, and means actuated by said operating device to move the last mentioned device into the path of said part and retain the same in that position until it has been engaged by said part and to then withdraw the same.

8. In a mechanism of the character described having a re istering device and resetting-mechanism t erefor, a ratchet wheel connected with said registering device and having a part forming a stop, a detent movabl mounted adjacent to said ratchet wheel, and means controlled by said resetting mechanism to positively move said detent into and out of the path of said part of said ratchet wheel.

9. In a mechanism of the character described having a registering device and resetting mechanism therefor comprising a shaft, and an actuating device for said shaft, a ratchet wheel connected with said registeriii) ' ing device, a stop-device movable into and out of a position to interrupt the movement of said ratchet Wheel and said registering device, and a cam connected with the shaft of said resetting mechanism and acting on said stop device to impart both movements thereto.

10. In a mechanism of the character described having a registering device, a retting mechanism for said registering deiice comprising a shaft, and actuating mechanism for said registering device comprising a ratchet wheel, an actuating device for said shaft, a stop movable into and out of a position to interrupt the movement of said ratchet wheel and said registering device, and a cam connected with the shaft of said resetting mechanism and acting on said stop device, said shaft being capable of continued movement after said ratchet wheel has been restored to its initial position to cause said stop device to be moved to an inoperative position.

11. In a mechanism of the character described having a registering device comprising a shaft, a ratchet wheel secured to said shaft, said ratchet wheel having a part forming a stop, a gear connected with said ratchet wheel to restore the same to its initial position, a mutilated gear adapted to mesh with the first mentioned gear and to have movement relative to the first mentioned gear after the movement of the first mentioned gear has been completed, and means for actuating said mutilated gear, a stop member movable into and out of the path of said part of said ratchet wheel, and means operatively connected with said mutilated gear for actuating said stop member.

12. In a mechanism of the character described having a registering device comprising a shaft, a ratchet wheel secured to said shaft and having a part forming a stop, a gear rotatably mounted on said shaft and having means for actuating the same to re-' store said ratchet wheel and said registering device to their initial positions, a second shaft, means for rotating said second shaft,

. a mutilated gear carried by said second shaft shaft and an operating handle connected with said shaft, an arm connected with said shaft, a .stop movable into and out of the path of said arm, a finger connected with said stop, and a part connected with said arm and adapted to engage said finger to move said stop into the path of said arm as said shaft nears the completion of its rotation.

14. In a mechanism of the character described having a registering device and resetting mechanism therefor comprising a shaft and an operating handle connected with said shaft, arms rigidly connected with said shaft and arranged on opposite sides thereof, one of said arms having a projection, a stop movable into and out of the path of the other of said arms, a spring tending to hold the stop out of the path of said arm, and a finger connected with said stop and arranged to be engaged by said projection to move said stop into the path of said arm.

15. In a mechanism of the character described having a registering device and resetting mechanism therefor comprising a shaft and an operating handle connected with said shaft, arms rigidly secured to said shaft and arranged on opposite sides thereof, one of said arms having a laterally extending projection, the other of said arms having a notch in the edge thereof, a stop finger mounted for movement into and out of the path of the last mentioned arm and having a nose adapted to enter said recess, a spring acting on said stop to move it out of the path of said arm, a finger connected with said stop finger and arranged to be engaged by the pro jection on the first mentioned arm to move said stop finger into the path of the last mentioned arm, said last mentioned finger being so arranged that said projection will move beyond the end thereof just before the last mentioned arm engages said stop finger.

16. In a mechanism of the character described having a registering device and resetting mechanism therefor comprising a shaft and an operating handle connected with said shaft, arms rigidly secured to said shaft and arranged on opposite sides thereof, one of said arms having a laterally extending projection, the other of said arms having a notch in the edge thereof, a stop finger mounted for movement into and out of the path of the last mentioned arm and having a nose adapted to entersaid recess, a spring acting on said stop to move it out of the path of said arm, a finger connected with said stop finger and arranged to'be engaged by the projection on the first mentioned arm to move said stop finger into the path of the last mentioned arm,

tioned arm when said'shaft is moved in a reverse direction and to move said stop-finger out of the path of the last mentioned arm.

17. In a mechanism of the character described having a registering device and resetting mechanism therefor comprising a,

I shaft and an operating handle connected with vice when the latter has been returned to its initial position, and an operative connection between the last mentioned shaft and the last mentioned device.

18. In a mechanism of the character described having a registering device comprisin a shaft and a ratchet wheel secured to said shaft, said ratchet wheel having a part I forming a stop, a cooperating stop member movable into and out of the path of said stop, a gear rotatably mounted on said shaft, and having means for actuating the same to restore said registering device to its initial position, a second shaft, a mutilated gear mounted on said second shaft and arran ed to mesh with and to have movement relatively to the first mentioned gear, an operative connection between said shaft and the last mentioned stop member, a part carried by said shaft for rotation therewith, a stop finger movable into and out of the path of said part, and means actuated by the rotation of said shaft to move said sto finger into the path of said part prior to the completion of the rotation of said last mentioned shaft.

19. In a mechanism of the character described havin a registering device comprising a shaft an a ratchet wheel secured to said shaft, said ratchet wheel having a part forming a stop, a cooperating stop member movab e into and out of the path of said stop, a gear rotatably mounted on 'said shaft and aving means for actuating the same to restore said registering device to its initial position, a second shaft, a mutilated gear mounted on said second shaft and arranged to mesh with and to have movement relatively to the first mentioned ear, an operative connection between sai shaft and the last mentioned sto member, arms secured to the last mentione shaft and arranged on opposite sides thereof, a stop finger movable into and out of the path of one of said arms, a finger operatively connected with said stop finger, a projection carried by the other of said arms and arranged to engage one portion of the last mentioned fin er to move said stop finger I into the path of said first mentioned arm and to engage a art of the last mentioned finger, when said s aft is moved in a reverse direction, to move said stop finger out of the path of said first mentioned arm.

20. In a mechanism of the character described, a registering device, a resetting mechanism therefor comprising a shaft, an oper ating handle connected with said shaft, a

part connected with said shaft for rotation therewith, a stop movable into and out of the path of said part, and means actuated by the rotation of said shaft to first move said stop out of the path of said part and to then move. 7 said stop into the path of said part prior to the completion of the rotation of said shaft.

In testimony whereof, we aflix our signatures hereto.

WILLIAM T HATMAKER. 7 EARL E. EICKMEYER. 1

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