US1998352A - Caliper and divider - Google Patents

Description

April 16, 1935.

l.1. BACHMANN CALIPER AND DIVIDER Filed June 16, 1932 2 sheets-sheet 2 1 B @www flllorney Patented Apr. 16, 1935 UNITED STATES PTENT` OFFICE 1,993,352 CAMPER AND DIVIDER Josef Bachmann, Philadelphia, Pa. Application vJune 16, 1932,` Serial No. 617,660

4 Claims.

This invention relates to calipers and dividers and the invention will be best understood from a study of the following description, taken in connection with the accompanying drawings 5 wherein:

` with calibrations thereon.

Figure 6 is a perspective viewof another slide block.

Figure 7 isa perspective view of the pointerv equipped end of one arm of the device.

Figure 8 is a perspective view of a pivot pin` yto behereinafter more fully referred to.

Figure 9 is `a sectional view taken on line 9 9 of Figure l. i

Figure 10 is a longitudinal sectional view taken'k substantially on the line Iii-i0 of Figure 6.

Referring more indetail to the drawings it will be seen' that my device as will be made apparent, may be used both as a caliper and as a divider comprises arms ID and II` pivoted at one end'in anysuitablemanner and as designated generally at I2. d

Each ofthe arms Il), II is formed to provide a pair of parallel portions, the said parallel portions of arm I0 being designated by the reference characters Ilia, IIJb and the said parallel portions of the arm lI designated by the reference characters IIa, IIb.

A plate I3 is secured at one end between th free ends -vof portions Illa, IUb of arm I0 as at I4, and at its free end the plate I3 has formed integrally therewith a pointer I5.

A plate I6 is secured at one endas at I'l'l between the free ends of the portions l |a,: Ib of arm II and at its free end plate I6 is provided with an extension l'l vequipped with a sleeve or other suitable clamp i8 for securing on said end of the plate-I6 a pencil or similar marking element I9.

Slidable on the arm `II is a substantially rectangular block 28 that? is provided withparallel openings `2l for accommodating the portions IIa, lib of arm 1I. A similar block 22 is slidably engaged with arm lll and has openings 23 extending therethrough for accommodating the portions Ilia, 13b of said arm Il). The block 22 may be secured at the desired adjustment on arm I0 through the medium of a set screw 24 as clear ly shown in Figure 3, while block 2U may be secured at the desired adjustment by a set screw The arm II,

in the present instance, on the part IIa thereof, is provided with a longitudinal scale graduated in terms of inches although the graduations may be in terms of centimeters or other desired units vof measurement. In the present instance, the scale is a twenty-five inch scale. The length of the scale will of course depend upon the length of the arm II.

In this connection, it

might be stated that the device is especially designed for use by sculptors in the making of statues and with the present device statues ranging from ve to twenty-five inches in height may be made as will hereinafter appear.

Block 20 as suggested in Figures 3 and 4 is provided in the edge thereof facing the arm I0 with a recess 32 adapted to accommodate one end of a cross bar 2?.

human body.

The length of the cross bar 2l will depend somewhat on the number of parts into which the sculptor is accustomed to divide the In this connection and as will be clear to those skilled in the art, some sculptors divide the humanrbody into a certain numberof parts and in the present instance the device is shown for use by those sculptors which divide the human body into fty six parts'.

has one end The bar 21 thereof adapted to fit and pivot 30, which pin S ts in either of the notches 29 provided in the edge of the block 2D through which the recess 32 opens.

In this connection, it

will be understood that the pin is secured within the selected notch 29 in any suitable man-V ner and that the reduced end 30 of said pin is of a diameter to fit sufficiently snugly within the circular opening the bai' 3" 3I to permit pivotal movement of and at the same time prevent sliding movement of said bar relative to the pin.

An index pin 33 somewhat similar to the pin 30 is adapted to t, and is secured in any suitable manner in either of the notches 29 provided in the edge of the block 22 confronting the block 2E] and this pin 33 has a reduced end operating within the aforementioned slot provided in the bar 27 and adapted to be read against the makingS on the bar 2l.

In this connection it will be noted that for substantially the full iength of the slot therein the bar 27 is provided with what may be termed a. scale graduated in terms of parts, each graduation line indicating, in the present instance, cne-fty sixth part of the whole, it being recalled that this device is especially adapted for use by sculptors who are accustomed to dividing the human body into fifty six parts.

The block 22 is secured at the desired adjustment on the arm I0 through the medium of a set screw 24 and after nal adjustment of the parts the same are secured in proper position by tightening the set screw 24 down on to the bar 21 as suggested in Figure 9.

The manner of using the device by a sculptor and its utility will be apparent from the following: Assuming that a sculptor in making a statue desires that the length of the arm of the statue be equal to thirty three parts of the whole, and the full length of the complete statue is seven inches. The sculptor would rst place and secure the block 20 in the position shown in Figure 1 with the end edge thereof facing toward the end of the arm l I opposite the graduation line 1 of the scale 25, The block 22 on the arm i0 would be moved to a position thereon substantially opposite to the block 20 and secured in position by the set screw 24. The arms Hi and H would be spread apart the maximum distance determined by the engagement' of the pin 33 in the end of the slot provided in bar 2 1 at that end of the slot remote from the aperture 3|. Next the arm l0 would then be moved inwardly toward the arm il until the index pin 33 moves opposite to the thirtythird scale line 28 when the set screw 24 would then be tightened to secure the Darts in position. Upon the making of this final adjustment the distance between the point of the marking instrument I9 and the point I5 will determine the full length of the arm of the statue.

It is thought to be obvious that the length of any other parts of the statue can'be readily determined substantially in the same manner.

It will also be apparent that the device can be used as a circle divider and when so used the graduations on the bar 2'1 would of course be in terms of inches and fractions thereof.

While I have shown only arm I! calibrated it lis apparent that arm lil may be correspondingly calibrated, and the calibrations both on the arms and bar 21 are such as to give reading in inches although the readings may if desired be in the other units of measurement.

Even though I have herein shown and described the preferred embodiment of the invention it is to be understood that the same is susceptible of further changes, modifications and improvements coming within the scope of the appended claims.

Having thus described my invention, what I claim as new is:

1. In a device of the character described, a pair of arms pivoted at one end, one of said arms being provided with a scale, blocks slidably engaged with said arms, fastening elements carried by-said blocks for securing them at the desired adjustment on said arms, a scale member having an end pivoted to one of said blocks and slidably passing through a slot in the other of said blocks, and an additional fastening device carried by the last named block for engagement with the scale member for securing said arms at the desired adjustment relative to one another.

2. In a device of the character described, a pair of arms pivotally connected together at one end, each of said arms having spaced parallel sides, blocks slidably engaged with said arms and having slots extending therethrough and slidably receiving the sides of said arms, fastening elements carried by the blocks and engageable with the arms for securing the blocks at the desired adjustment, one of said blocks being provided with a laterally opening recess, and the otherof said blocks having a third slot extend ing vltherethrough, a scale member having an end pivoted within the recess of said one block, and

slidingly passing through the third slot of said other block, and a fastening elementen the last named block engageaoie with the scale member for securing the arms at the desired adjustment.

3. I n a device of the class described, a pair of arms pivotally connected together at one end, blocks slidably engaged with .said arms, set screws carried by the blocks and engageable with the arms ier securing the blocks at the desired adjustment, pins carried by said blocks, a slotted scale member having pivotal engagement with the pin 0n one of said blocks and slidingly passing through a slot in the other of said blocks, the Din on the last named block engaging the slot in said scale member, and afastening device carried by the last named block and engageable with the scale member for securing the arms at the desired adjustment.

4. In a device oi the Character described, a pair of arms pivotaily connected together at one end, one of said arms sing provided with a longitudinal scale graduated in terms of inches, a slide block on each of said arms., means carried by each. Slide bleek and engaeeable with its arm for securing the biock at the desired adjutment. e cross ba ontbe scale equipped and having a .free end portion 'slidable through a slot on the block of the other arm. said last named bloci having a device engageabie with the cross oar for securing the arms at the desired angular adjustment relative to one another, and said cross bar being provided with eflongitudinal scale graduated in terms of partsjand an index carried by the last named block andreadable against the graduations on the cross bar as and for the purpose specified.

JOSEF BACHMANN.

"voted at one end to the block,

Images