US506793A - Price-scales - Google Patents

Description

(No Modem 2 sheets-sheen 1.

o.. o. oZIAs. PRICE SCALE.

Patnted 001;. 17, 1893; d? f7 2 Sheets-Sheet 2.

(No Model.)

O. O. OZIAS.

PRICE SCALE.

UNITED STATES ORANGE O. OZIAS,

PATENT OFFICE.

OF DAYTON, OHIO.

PRICE-SCALES.

SPECIFICATION forming part of Letters Patent No. 506,793, dated October 1?, 1893.

Application led September 3, 1892. Serial No. 444,976. (No model.)

To all whom it may concern.-

Be it known that I, ORANGE O. OZIAS, of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Price-Scales; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

This invention relates to improvements in priceand weighing scales, such for instance as described in the patent granted to W. H. Sanderson and myself, No. 451,07 5, dated April 28, 1891, and has for its object toimprove the mechanism for moving and locking the computing beam and holding the terminal of the connecting rod against lateral movement when the computing beams are moved.

With the above objects in View the invention consists in certain novel details of construction and combinations and arrangements of parts all as will be now described and pointed out v particularly in the appended claims.

Inv the accompanying drawings: Figure 1 is a front elevation of the computing beams carriage and the upper part of the pillars of a grocers scale showing my invention, portions of the frame being broken away to show underlying parts. Fig. 2, is an end elevation of the carriage and computing beams. Fig. 3 is a vertical section through the same on the line :1J-, Fig. 1. Fig. 4t is a detail showing locking mechanism released to permit of the movement ofthe carriage. Fig. 5 is a top plan view of the mechanism in the base of the carriage. Fig. 6 is a detail elevation of the locklng cam.

Similar letters of reference in the several figures denote the same parts.

The base, platform and complemental parts of the present scales may be the same as heretofore constructed. I-Ienoe I have not deemed it necessary to illustrate or describe the same.

At the tops of the pillarsA which extend up from the base is the usual cap, or as I have heretofore termed it, the supplemental base B,in the present instance provided with tracks b upon which travels the carriage C carrying the computing beams D mounted on knife edge bearings d resting on the fulcrum standard d of the carriage. Antifriction rollersc are preferably journaled in the carriage and. travel on the tracks to give a smooth and easy motion and at one end said carriage carries the usual bracket d2 for limiting the tilting movement of said beams.

Extending up from the platform, or platform levers, is the usual connecting rod F. with proper connections for the Weighing beam below the supplemental base, as described in the before mentioned patent, for instance, and terminating in a yoke F embracing the computing beams and having bearings for the reception of the knife edge bearings g rigidly mounted on a connecting block G sliding on said beams and adapted to indicate the price per pound by registering with proper indices ou the lower beam. This connection, it will thus be noted, is loose and works with perfect freedom insuring the greatest accuracy in the weighing operations.

The upper part of the connecting rod E passes through a relatively large central opening in a vertically arranged shaft H, which shaft is mounted to slide in a vertical bearing I mounted rigidly on, or forming a part of, the supplemental base B. The shaft H forms a part of the stop rest or positioner for the upper end of the connecting rod, its upper end for this purpose being formed witha relatively large fork or yoke L lying outside the yoke F and having the upper ends notched or slotted at 7L and embracing the ends of the knife edge bearings outside of the yoke F. Theslots or guide ways 7L for the ends of the knife edge bearings are preferably wide at the top and narrow at the bottom. Thus when the rest is raised the bearings and connecting rod are at once brought back to proper position should it so happen that they have worked out of place, and at the same time they are held rigidly against lateral move ment permitting the carriage to be shifted without moving the end of the connecting rod and its bearing blockin theleast. The guide rest or stop L is adapted to be raised as just described whenever it is desired to shift the carriage and computing beams, and to successfully accomplish this, the lower end of the shaft I-I is carried below the supplemental base or the base of the bearing I and has IOO a lateral extension or arm H applied thereto by a clamp or collar, which arm has an upward and forwardly extending bearing surface h2 thereon with which is adapted to engage a cam pin K carried by a cam K journaled in a bearing la secured rigidly to or formed on the supplemental base. The cam K has a hub or boss extending way through the bearing 7e as shown clearly in Figs. l and 5, and is thus prevented from moving with the squared shaft L2 in either direction.

Journaled in the carriage at each end is a squared or irregularly shaped shaft L2, which shaft slides through a corresponding opening in the cam and is adapted to turn the same, but moves freely therethrough, for which purpose it is obvious it may be of any preferred irregular shape or slotted and a key employed to lock the two against independent rotation in the well understood manner.

On the left hand end of the shaft L2 is mounted a handle M having a stop projection m for arresting its motion when turned to horizontalposition as shown in dotted lines in Fig. 2, and the parts are so adj usted and proportioned that bya quarter turn of the shaft, as by moving the handle from vertical to horizontal position, the yoke will be lifted and the bearings on the connecting block held firmly in place. Then by means of said handle the carriage may be easily moved to its new adjustment. A spring N is preferably employed to return the handle automatically to vertical position, but it is obvious that a counterweight will answer and as its use is well understood in such connectionsit is not illustrated.

It is highly desirable, if not essential, that a lock should be provided for holding the carriage against movement when the yoke is lowered and the parts in condition for weighing. I-Ience I provide alock which is released by the downward movement of the handle and locked by the reverse or return movement of the same. This lookin the preferred construction consists simply of a cam surface on the cam K which cam surface bears against some part moving with the carriage when the arm is raised and is disengaged therefrom when the arm is turned down.

As shown the cam K has a cam surface O at the bottom which engages a rod P moving with the carriage in proximity to the top of the supplemental base. This rod is clamped against the base by the cam as shown clearly in Fig. 3. lVhen so clamped the carriage is immovable so far as ordinary strains are concerned, and it will be particularly noted that the clamping action of the cam operates to lock the carriage by friction which, while not an advantage in itself, nevertheless enables a lock to be made which will lock the carriage at absolutely any desired point, a result which could not be secured were locking teeth of any character employed. Hence the greatest accuracy in the adjustment of the computing beams with relation to the counecting rod may be secured.

Many of the details of construction it is obvious may be changed, and mechanical equivalents substituted, although to secure the results stated the mechanism shown is preferred, inasmuch as it is simple and eilicient, involving the fewest possible number of parts.

In use the manipulator or grocer desiring to change the rate per unit, say the price per pound, simply grasps the handle, draws it down to horizontal position, which movement positions the end of the connecting rod and block with the knife edge bearings and simultaneously releases the lock for the carriage; then without releasing his hold on the handle the carriage is shifted to its new position, the poise weight R moved to the price desired and the weighing operation carried on in the ordinary well known manner, or the weight- R is moved to balance the article and indicates its price.

Having thus described my invention, what I claim as new is I. In a price scales, the combination with the laterally movable computing beam and connecting rod loosely connected therewith, of the stop rest for positioning the end of the connecting rod and the handle for operating said stop rest moving laterally with the computing beam; substantially as described.

2. In a price scales, the combination with the laterally movable carriage having the fulerum bearings thereon, the computing bea-m mounted in said bearings and the connecting rod loosely connected with said computing beam, of the handle jonrnaled in the carriage and connections between said handle and stop rest whereby the connecting rod may be disengaged and the carriage moved with one hand; substantially as described.

3. In a price scales, the combination with the supple mental base, laterally movable carriage mounted thereon, the pivoted computing beam fulcrnmed on said carriage andthe connecting rod loosely connected with said beam, of the vertically movable stop rest for holding the end of the rod against lateral movement the stationary bearing on the base in which the stop rest works, a handle moving with the carriage and connections between the handle and stop rest whereby the stop rest may be moved into operative position and the carriage shifted with one hand; substantially as described.

4E. In a price scales, the combination with the laterally movable carriage computing beam mounted thereon, connecting rod loosely connected with the beam, and the stop rest, of the shaft journaled inthe carriage, handle on said shaft and a sliding connection between the shaft and stop rest, whereby the stop rest may be operated with the carriage in any position of adjustment; substantially as described.

ICO

IIO

5. In a price scales, the combination with the laterally movable carriage, computing beam mounted thereon connecting rod loosely connected with the beam and the stop rest, of the shaft j ournaled in the carriage, handle on said shaft and cam through Which the shaft slides for moving the stop rest when turned by the shaft; substantially as described.

6. In a price scales, the combination With the laterally movable carriage, computing beam mounted thereon, connectingrod loosely connected with the computing beam and stop rest having the arm at the bottom, of the shaft journaled in the carriage, the cam through which the shaft passes journaled in stationary bearings and engaging the arm on the stop rest substantially as described.

7. In a price scales, the combination with the laterally movable carriage, computing beam mounted thereon, connecting rod loosely connected with the computing beam and the stop rest, of the shaft j ournaled in the carriage for moving the stop rest and a spring for returning said shaft and stop rest to normal position; substantially as described.

8. In a price scales, the combination with the laterally movable price beam, connecting rod loosely connected therewith, the stop rest, and a lock for preventing the lateral movement of the beam, of a handle moving laterally in unison with the beam and connecting both the lock and stop rest; substantially as described.

9. In a price scales, the combination with the laterally movable carriage and beam mounted thereon, connecting rod loosely connected With the beam, stop rest, and the lock for preventing the lateral movement of the carriage of the handled shaft j ournaled in the carriage and connections between said shaft and the lock and stop rest; substantially as described.

l0. In a price scales, the combination with the laterally movable computing beam, of a locking cam having afriction surface for holding said beam in adjusted position, whereby it may be adjusted with absolute accuracy and locked; substantially as described.

11. In a price scales, the combination with the laterally movable carriage and computing beam pivoted thereon of the locking cam mounted in stationary bearings and the shaft on the carriage for releasing said cam; substantially as described.

12. In a price scales, the combination with the laterally movable carriage and computing beam pivoted thereon of the locking cam mounted in stationary bearings, the rod movable with the carriage with Which said cam cooperates to lock the carriage and a handle for releasing the cam; substantially as described.

13. In a price scales, the combination with the laterally movable carriage, computing beam mounted thereon, connecting rod loosely connected with the computing beam and Vertically movable stop rest, of the cam mounted in stationary bearings and having a cam surface engaging a member movable with the carriage, an arm engaged by said cam for moving the stop rest and a handled shaft j ournaled in the carriage and passing through the cam to turn the same with the carriage at any position of adjustment; substantially as described.

.ORANGE O. OZIAS.

Witnesses:

LUTIE F. KEPLER, BENJAMIN F. MOCANN.

Images