US2311437A - Weighing scale - Google Patents

Description

Feb. 1e, 1943.

J. H. HOMRIGHOUS4 WEIGHINIG SCALE Filed Nov. 7. 1938,

:I msmoue @I ml @Imm '0 N we I I I AK g., F G 4 D l o TEASPDONI QI nl l`I o |n| Q| nl Nl TMLESPOOMS n N v nl N noun I z5 N SUGAR CANE I I T\ 24 I SUGAR aRown -I I I 2" NI BUTTER l I l uwen-ron 1| coRNnEAL NI Patented Feb. 16, 1943 UNITED STATES PATENT OFFICE WEIGHING SCALE John H. Homrighous, Oak Park, Ill. Application November 7, 1938, Serial No. 239,273

7 Claims.

This invention relates generally to weighing scales and more particularly to scales having a low and comparatively high capacity or weighing range.

One of the principle objects of this invention is the provision of a dial or chart graduated to indicate the amount of material required to fill various sizes of containers.

Another object of this invention is the provi- Sion of a dial or chart graduated to indicate the amount of material or substances required to make Various quantities of a mixture.

A still further object is the provision of a scoop for scooping up materials and automatic means for indicating the weight or quantity of material in the scoop.

Various scales have been devised for indicating the weight of different substances for a denite receipt or formula, in some a different chart must be used for each separate receipt, in others the different ingredients are assigned certain numbers or symbols having no relation to the weight or quantity of material. In my invention I provide a device for indicating the amount of a substance required such as coffee for making a certain number of cupfuls of a mixture, also for making pastries I provide a dial showing quantity of various materials or substances in cupfuls and teaspoonfuls. With this dial it is possible to weigh the quantity of Various substances in a receipt using the same terms that are now in common use.

These and other objects and advantages will be apparent from the following detailed description, reference being had to the accompanying drawing in which:

Fig. 1 is a front elevational View of a scale embodying my invention.

Fig. 2 is a plan view of the mechanism shown in Fig. 1 and shows in part the arrangement of the several rows of graduations on the dial.

Fig. 3 is a detail view in a straight plane of the dial or chart showing the arrangement of graduations for various substances.

Fig. 4 is an end elevation or" the indicating finger and guard in Fig. 1.

Fig. 5 is a detailed view of a support.

In the drawing, 6 represents a vertical channel shaped member, which has secured to its lower end a handle 1. This handle 1 may be replaced by a horizontal support 8, for supporting the scale in an upright position. Between the edges of the vertical channel shaped member 5, one end of each of the levers 9 and I0 is pivoted in suitable bearings such as 9 and IU shown in ,indicator or linger 24, better shown one edge of the channel 6. The other end of each lever is pivoted between the edges of the vertical channel shaped load member II in similar bearing 9 and Iii shown in the front edge of the channel II, Fig. l. This vertical member II at its lower end may have a scoop I2 secured thereto for scooping up Various materials or substances. This scoop I2 may be detached and a platform I3 may be secured to the upper end of upright II for holding substances to be weighed. .For lling the scoop I have provided an arm I4 riveted to the lever 9 and extending through an opening in the upright 6 to a position above the handle '1, for holding the scale mechanism in an inoperative position.

For weighing or counterbalancing a load placed in scoop I2 or on the platform I3 I have provided Ia pair of springs I5 and IS. One end of spring I5 is permanently secured to the inwardly extending arm I1 attached to vertical member II and the other end is adjustably secured to an inwardly extending arm I8 attached to the vertical member 6. Spring I5 is for low weight range. One end of spring It is adjustably secured to `arm I8 while the other end is fastened to a pin I9. In order to increase the capacity of the scales the pin I9 is inserted in the opening I9 in the lug 2G, on pointer or indicating lever 2I, which in turn is riveted to lever I. Before inserting pin I9 in the lug 20, guard arm 22, which is rockably mounted at 22 on pointer or indicating lever 2l, and normally held away from the lever 2| by the action of spring 23, must be depressed in order to insert the pin IS. In this way a different portion of the dial or chart will come in View along the in Fig. 4. The guard 25, as shown in Fig. 4, is in normal position and permits the right side of the dial to be read along the indicator. By inserting pin I9 in lug 2i), when using both springs I5 and I6, to increase the weighing range o1" the scale, the guard 25 is moved toward the indicating finger 24, bringing the left side of the dial or chart in view along the edge of the indicator, The left upper edge of the guard 25 is slightly below the upper edge of the indicating linger 24 when both springs are used for weighing.

The dial frame 26, is mounted on vertical member 6, so that the indicating linger 24 will travel along the periphery of the dial or chart 21. This chart 21 is held to the dial frame 26, by screws 28 and 29 at the bent over ends. Instead of having the dial on the right side of the scale as shown on the drawing it may be changed spaced differently to take care of the several 1 It is common knowledge that kinds of mixtures.

the first cup of coffee requires a greater amount of ground coffee than the second or succeeding cups, when brewed together. Therefore to take care of this condition,

other spaces.

To make any number of cups of coifee, the operation is as follows: Place on the platform or in the scoop enough ground coffee to bring the indicating finger 24 into alignment with the graduation designated by the numberal indieating the desired number of cups of coffee to be brewed.

Below the rows of graduations for coifee, I have shown various rows of graduations designated by the name of substances or materials and graduated into divisions of containers. Practically all receipts for pastries etc. used in the home call for cupfuls and teaspoonfuls of certain substances. Therefore to more easily obtain the exact quantity of any substance in a receipt in containerfuls without changing the amount into lbs. and oz. I provide on the dial or chart 21 various rows of graduations indicating cups, teaspoons, and tablespoons.

The operation is as follows to measure any number of cups of a substance. Place enough of that substance on the platform or in the scoop to bring the indicating finger 24 into alignment with the graduation designated by the numeral indicating the desired number of cups in the particular row of graduations allotted to the substance being weighed.

While I have shown the chart 2l, as applied to a spring weighing device, it is to be understood that the same features apply to beam scales. And may also show weight in pounds and fractions thereof.

It is obvious that the weighing device may take a variety of vother shapes or forms and various arrangements of graduations on the dial may be made without departing from the essential features thereof. Therefor I do not desire to be limited to the particular form or arrangement shown herein, but contemplate all modifications and changes therein Within the terms of the appended claims.

Having thus described my invention, I claim:

l. In a weighing device comprising a frame, a chart having weight graduations mounted on said frame, a scoop load levers pivoted to said frame and to said scoop, and providing a parallel linkage there between, a lever holding arm secured to one of said load levers and adapted to be held in a fixed position relative to said frame to render the weighing mechanism inoperative during a scooping operation, load counter-balancing means carried by said frame and I have made the first space from zero to one in each row longer than the,

resisting movement of said scoop and load levers' relative to said frame, and an indicator pivoted to said frame and movable relative to the said chart to indicate the weight of material in said scoop.

2. In a weighing device comprising a stationary frame provided with a support, a movable frame provided with a platform, a chart mounted on the stationary frame having several rows of graduations, some of the rows being for a light load weighing range and other rows being for a heavy load weighing range, load levers pivoted on said frames, a pair of springs adjustably secured at their upper end to the stationary frame, the lower end of one spring being fastened to the movable frame, the lower end of the other spring being detachably connected to one of the load levers, and an indicator pivoted on the stationary frame and movable relative to said chart, to indicate light load graduations when only one of said springs is under tension and to indicate the heavy load graduation when both of said springs are under tension.

3. In a spring scale adapted for weighing light and heavy loads, a chart having light and heavy load calibrations, an indicator cooperating with either set of calibrations, means for adjusting the spring resistance for light and heavy loads, and means operated automatically in response to such adjustment to select a portion of said indicator and thereby the calibration which is to be used with said indicator.

4. In a spring scale, a spring for opposing movement of a part of the scale under a load being weighed, a second spring adapted to aid said first spring when weighing a load exceeding a predetermined weight, a chart having light and heavy load graduations, anv indicator cooperating with either set of graduations, means for connecting and disconnecting said second spring, and a movable member actuated in response to the said connection and disconnection forl advising the operator as to the set of graduations with which said indicator is to be used. Y

5. In a scale, means for adjusting said scale to weigh light or heavy loads, a movable indicator comprising two parts for distinguishing between light and heavy loads, and means for automatically rotating one of said parts relative to the other responsive to a change in adjustment from light to heavy load weighing or vice versa for adjusting the said indicator to show either a light or heavy load condition.

6. In a scale, means for adjusting said scale to weigh light 'or heavy loads, a chart having light and heavy load calibrations, a rotatable indicator having sections adapted to cooperate with said sets of calibrations, respectively, and an automatically operated device secured to the said indicator for obscuring the calibrations in the vicinity of one or the other of said sections depending on the instant scale adjustment.

'7. In a scale, means for adjusting saidA scale to weigh light or heavy loads, a chart having light and heavy load graduations, a movable indicator cooperating with said chart and including a part having light and heavy load positions, and means for retaining said part in either position to bring in view along the indicator either light or heavy graduations depending on the adjustment of the scale.

JOHN H. HOMRIGHOUS.

Images