US1684928A

US1684928A - Odometer

Info

Publication number: US1684928A
Application number: US198911A
Authority: US
Inventors: Jr Robert M Simpson
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-06-15
Filing date: 1927-06-15
Publication date: 1928-09-18
Anticipated expiration: 1945-09-18

Description

Sept. 1a, 1923. v 1,684,928

R. M. SIMPSON, JR

ODOMETER Filed June 15. 1927 W LALI-VVENTOR.

7 1/ fAo-u, BY I a4 5 W f WM ATTORNEYS.

Patented Sept. 18,1928.

UNITED STATES PATENT OFFICE.

ROBERT M. SIMPSON, Ill, OF CHICAGO, ILLINOIS.

ODOMETEB.

. Application filed. June 15,

. tions of a churn or butter working machine,

has brought forth a .few devicesapplicable to, machines of this character, but the eficct of briny water and constant operation in humid atmosphere has resulted in failure of such devices to function for a substantial length of time. i V i r The object, therefore, of my device is to provide an odometer to register the number of revolutions of a butter working machine which will be so constructed as tobe positive in its operation, resistant to brine, and easy of control.

In the drawings:

Fig. 1 is a view of the end of a drum type churn-with my odometer secured thereto.

Fig. 2 is a side elevation of the end of the churn equiped with my device. I

Fig. 3 is a front view of my odometer with a face and dial removed to show the internal mechanism.

Fig. 4 is a section on line 4-4 of Fig. 3.

Like parts are designated by the same reference characters throughout the several views.

\Vithout exception in the present style of design in churn and butter working machine art, the drum type machines provlde enough space between the drum 1 and A frame 2 to permit of the mounting of my devlce on the head 3 of the drum without danger of my device striking the A frame in the revolutions of the drum about its axis 4.

I have, therefore, formed my device as shown at 5 in Figs. 1 and 2 in such manner as to restrict the thickness of the entire instrument so that it may be adapted to any of the present types of revolving butter working machines now on the market.

Externally my'odometer comprises a case 5 which maybe formed as best shown in Fig. 4 or which may be, if preferred, formed in a plain drum shaped body provided with a dial 10 and a manual setting stem 11 as shown in Fig. 4. The device is mounted eccentrically upon the head of the butter working machine and will obtain the motive force for operating the internal mechanism of my odometer in the manner hereinafter set forth by reason ofthis eccentric mount ing.

"oncentric with the dial l0 and extending 1927. Serial No. 1%,911.

rearwardly and therefore horizontall withinthe case 5, I provide an indicator s iaft 12 upon which, at its'outer or forward end, is niounted'an indicator 18 and upon which, at its inner end, is mounted the eccentric this indicator shaft 12 provides the motivating force for the operation of my device. At an intermediate point upon this shaft and secured tightly thereto by key or setscrew isa gear wheel 15 rotation of which causes the indicator hand 13 to point outthe number of turns which the butter working machine has made. I

A. cam groove 16 substantially circular, and eccentric to the shaft 12 is cut in the weight 14 as indicated in Figs. 3 and 4 and is provided as a guide for the cam follower 17 whicluin following its path in the cam groove 16, imparts motion to theoscillator shaft 18. Mounted on the oscillatory sha t 18 is a pawl 19 which engages a ratchet 20, mounted on shaft 11. Shaft 11 carries a pinion 21 meshed with the gear 15 and the resulting mechanical connection enables the weight 14- to rotate the indicator 13 as follows.

As the churn or other butter working machine rotates about its axis 4 the weight 14 freely mounted upon the shaft 12 rotates upon the axis of said shaft 12 and causes the cam follower 17 to trace its path in the cam groove 16 thereby oscillating the shaft or arm 18 and causing the pawl to successivelyv engage the ratchet 20 so as to intermittently rotate the intermediate shaft 11 upon which the pinion 21 is mounted. Rotation of this pinion will obviously cause rotation of the gear 15 and the shaft 12 and cause the indicator 13 to point out upon the dial the number of revolutions which the butter working machine has made.

At 25 and 26 it will be noted that the shafts 12 and llrespectively pass through the casing 5. At these points 25 and 26, therefore, I have provided packing to prevent leakage of lubricant from casing 5 and to preventaccess of brine to the mechanism. Likewiseat 27 I have provided packing for the same purpose about a stop lever 28 which weight 14, rotation of which freely about is provided in the following manner and for an indicator is not required, as for; instance,

when actual churning rather than working of butter is being accomplished in the churn, the stop lever 28 may be thrust inward so as to cause the catch 29 to engage the notch 30 in the weight 14, thus effectively stopping the entire operation of the mechanism in my device until such time as indication of number of revolutions is desired.

Provision of the packing at 25, 26 and 27 enables me to provide lubrication within the casein large quantities so that the mechanism in my device is substantially running in oil.

I claim:

1. An odometer comprising an indicator shaft, a rotatable weight, an eccentric mounting for said weight, a cam track in the weight, a cam follower for said cam track, a cam follower arm, a pawl on said arm, a pinion and shaft provided with a ratchet for said pawl, and a main shaft and indicator provided with a gear intercorr nected with the pinion.

2. An odometer comprising a case and a calibrated dial on the case, an indicator shaft extending rearwardly from the dial and provided with a gear within the case, an indicator on the forward end of the shaft, a weight mounted eccentrically for free rotation on the rearward end of the shaft, and within the case, a cam groove in said weight eccentric to the shaft, an intermediate shaft within the case, an oscillatory arm provided with a pawl and mounted for free rotation on the intermediate shaft, a cam follower in said groove and secured to the oscillatory arm, a ratchet wheel mounted on the intermediate shaft in operative relation to said pawl, a pinion on the intermediate shaft and meshed with the gear on the indicator shaft.

8. A case comprising two compartments separated by a partition provided with a central slot, a central shaft extending through the first compartment and into the second compartment adjacent the slot, a weight provided with a cam track and loosely mounted on the central shaft in the second compartment, a counter-shaft and ratchet mounted for rotation in the first compartment and an oscillator and a pawl provided with a cam follower to interact through the slot with the cam track in the weight and a mated gear and a pinion upon the central shaft and counter-shaft respectively.

ROBERT M. SIMPSON, JR.