US576583A

US576583A - Weighing-machine

Info

Publication number: US576583A
Authority: US
Publication date: 1897-02-09
Anticipated expiration: 1914-02-09

Description

(No Model.) 2 Sheets-Sheet v1.

E. R. JONES. WBIGHING MACHINE.

NO- 576,533- Patented Feb. 9, 1897.

.Mlm

E. R. J ONES. WEIGHING MACHINE.

2 Sheets-Shea?J 2.

(No Model.) I

7. mw o m lo M w l M W d f m W f UNITED STATES ATENT OFFICE.,

EDVVIN RUlHVEN JONES, OF KINSMAN, OHIO,

WEIGHINGHWEACHINE.

SPECIFICATION forming part of Letters Patent No. 576,583, dated February 9, 1897.

Application led April 30,1895. Serial No. 547,678A (No model.)

To @ZZ whom if; may concern.-

Beit known that I, EDWIN RUTHvnN Jonas, a citizen of the United States, residing at Kinsman, iu the county of Trumbull and State of Ohio, have invented a new and useful Weighingiachine, of which the following is a specification.

My invention relates to weighing-1nachines adapted for weighing grain, ground cotfee, spices, soda, the.; and the objects in view are to provide simple and efiicient means for regulating the flow of grain from the hopper and controlling the operation of the bucket-wheel.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claim.

In the drawings, Figure 1 is a perspective View of a weighing-machine constructed in accordance with my invention. Fig. 2 is a longitudinal vertical section of the same, showing the position of the parts at the beginnin g of the operation of iilling a bucket. Fig. 3 is a similar view showing the positions of the parts when, by reason ot' the weight of the partially-filled bucket, the main weight is elevated from its point of support and the cut-off is partially closed to reduce t-he rapidity of the flow of the grain. Fig. 4 is adetail view in perspective of the cut-off valve and contiguous parts. Fig. 5 is atransverse vertical section on the line 5 5 of Fig. 2.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

1 designates a casing which supports a balance-beam 2, the latter being provided with transverse knife-edge trunnions 3, seated in bearings 4 upon the upper side of the casing. The bucket-wheel 5 is provided with lateral trunnions G, mountedin bearings in the lower extremities of a supporting-strip v7, having parallel vertical arms which approach each other above the plane of the upper side of the wheel and combine to form a loop 9, within which is fitted the extremity of the long arm of the balance-beam. The bucket-wheel is provided at intervals, regulated by the number of buckets and the intervals between the partition-walls separating the buckets,

l with stop-fingers 10, which are adapted to successively engage a iixed stop 11, depending from the top of the casing in the path of said stop-lingers7 and the wheel is also provided upon one side with a series of spaced pins 12 for engagement by a stop-spring 13 to prevent backward rotation of the bucketwheel. These pins are adapted to pass the stop-spring during the forward rotation of the bucket-wheel, but are prevented by said spring from moving in the opposite direction.

Arranged above the bucket-wheel and adapted to discharge into the uppermost bucket or compartment thereof is a chute 14, having an inclined wall to prevent the accumulation of the grain in the chute, and operating in vertical guides 15 at the open side or mouth of the chute is a sliding cut-olf valve 1G, adapted, when depressed, to close the chute and prevent the escape of grain therefrom. Communicating with the inlet-opening of the chute is a hopper 17, having a reduced outlet 18 to iit in a collar 19, iiXed to the casing, and mounted in guides 2O at the top of the chute is a regulating-valve 21, adapted to partially or wholly close the inletopening of the chute and thus regulate the tlow of the grain to the chute.

The connection between the balance-beam and the cut-off valve, in order to provide for the closing of the cut-olf when the long arm of the balance-beam is depressed by a sufiicienc'y of weight in one of the buckets or compartments of the wheel, such depression being sufficient to disengage a stop-linger of the bucket-wheel from the iixed stop and therefore allow said bucket-wheel to rotate sufficiently to discharge the contents of the filled bucket, comprises a clip 22, carried by the long arm of the balance-beam and having a transverse channel 23 for the reception of an ear 24 on the cut-oit. This allows freedom of movement of the balance-beam and cut-oft to follow, respectively, their pivotal and rectilinear movements.

The weight which is attached to the short arm of the balance-beam is so constructed as to allow a limited movement of the balancebeam to partially close the cut-off before the contents of the uppermost bucket or compartment of the wheel reach the weight de- IOO sii-ed l'or disengaging the stop-linger ol' the bucket-wheel from the fixed stop, and hence said weight is sectional in construction and comprises a main upper section 25 and an auxiliary section 2o, connected loosely7 to the main section to allowalimited vertical movement of the main section without communicating motion to the auxiliary section. In the construction illustrated in the drawings this loose connection attained by means of a rod 27, secured at its lower end to the auxiliary section or member ol' lthe weight and itted to slide in an opening in the main section or member, the movement ot this con necting-rod lufing limited by a stop on the upper end ol the rod when the separation of the two weights is sul'lcient to allow a movement of the balsmee-beam necessary to close the eut-oli' valve to the desired extent. The upper or main section or member ol the weight is connected to a slide ZS on the balancebeam, said slide being secured in place by means ot' a set-screw 29, whereby the weight in a bucket or compartmentof the wheel necessary to depress said wheel and elevate the weight may be varied.

'lhe normal positions ol the parts of 'the apparatus are indicated i n Fig. 2, from which it will be obserif'ed that the weight is supported by a platform i() in the easing, the main or upper section or member of the weight resting u pon the upper end ol the auxiliary section or member, and in this position el' the weight the cut-oli' valve is open to its greatest extent to allow the iree escape ot' grain lfrom the chute into the uppermost b ueket or compartment ol' the wheel. li'hen, however, the grain which has been deposited in said bucket or compartment is snilicient to counterbalanee the main or upper section or member ol the weight, the latter will. be raised n ntil checked by the loose connectionbetween the members ol the weight, and at the same time the ent-oil will be partly closed, the amount olfmovement ol the cut-oil being` proportionate to the extent ot' movement olf the main or upper member of the weight independently of the auxiliary or lower member thereot'. The object in thus partly closing the cut-oil. as the weight ot the contents of a bucket approaches the point ot' eounierbalancing` the weight is to reduce the rapidity ot the llow ol grain into the bucket, whereby the bucket will be depressed when it contains eX- actly the amount desired. This is to prevent the grain from ilowing into the bucket so rapidly as to overrun the amount desired betere trates the mechanism can `respond and thereby cul oil the flow.

Obviously the ratio of the weights ot' the two sections oi' the weight may be varied to suit 'the point at which it is desired to partially close the cnt-oit, but l have found in practice that the main section of the weight may be seven-eighths ol' the entire weight, and, il dcsired, it may even be equal to liiteen-sixteenths thercot' in ordcrlio avoid along delay in completing the l'lling ol a bucket at'tcr the cut-ottI has been partly closed. All that is necessary in order to carry ont this object olf my invention is that the weight should hare` a loosely-connected seclii'm or member supported independently ot' the main section or member, whereby it checks the movement ol` the balance-beam after the main section or member has been counterlmlaneed and raised a limited distzfmce. 'lhe ratio ot the weights is immaterial, as it is obvious that the indepeiidently-movable sections thereol.' may be of equal. weight o1' a greater number ol' sections than two may be employed when it is desirable to gradually close the eut-oit as the weightin the bucket nears the desired amount, instead of allowing it to increase to within a :fraction of the weight, as in the i'fonsl'ruii'ton illustrated in the drawings.

Various other changes in lthe l'orm, propow tion, and the minor details ot construction may be resorted to without departingl trom the spirit or saeriicing any of the advantages oit this invention.

llaving described my invention, what l claim isp ln a weighing apparatus, lhe continuation with a balance-beam and weight, ol' a stirrup connected to and supported by the beam, a bucket-wheel mounted in the stirrup, slrmcelfl stop-lingers l() upon the wheel, a liked stop ll to engage said lingers when the wheel is elevated, a stationary stop-spring 13 vadaplful to engage spaced lateral pins l2 on `the side ot' the wheel to preventbackward rotation oi' the wheel, said spring bearing at its extremity against the side ot' the wheel, and means l'or controlling the supply ol' material to the buckets, substantially as specified.

ln testimony that I claim the `foregoing as my own l. have hereto al'iixed my signature in the presence otl two witnesses.

`\\'itnesses:

lV. XV. Davis, .1. A, Garcin.

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