US1328538A - Conformator - Google Patents

Description

C. A. NEWBERG AND E. l. WEISBERGER.

CONFORMATOR.

APPLICATION FILED JAN- 13 1919.

1,328,538. Patented J an. 20, 1920.

2 SHEETS-SHEET I.

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CONFORMATOR.

APPLICATION FILED JAN. [3. 1919.

Patented J an. 20, 1920.

2 SHEETS-SHEET 2.

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.EZ- Weigh w,- W 1 6 rel i the county of Kings and State of New UNITED STATES PATENT OFFICE.

CHARLES A. NEWBERG AND EDWARD I. WEISBERGER, 0F BROOKLYN, NEW YORK.

CONFORMATOR.

Specification of Letters Patent.

Patented Jan. 20', 1920.

Application filed January 13, 1919. Serial no. 270,907;

To all whom it may concern:

Be it known that we, CHARLES A. NEW- BERG and EDWARD I. WEISBERGER, citizens of the United States, residing at Brooklyn, in

York, have invented certain new and useful Improvements in Conformators, of which thefollowing is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in conformators, and has relation more particularly to a device of this general character including a flexible band or spline, and it isan object of the invention to provide a device of this general character having novel and improved means whereby the band or spline may be readily and conveniently adjusted into different curvatures compound or otherwise and effectively main tained in a desired arrangement.

It is also an object of the invention to'provide a novel and improved device of this general character including a body adapted An additional object of the invention is to provide a novel and improved device wherein the flexible band or spline has its rear or inner face provided with a longitudinally disposed groove or'channel in which the extremities of a plurality of are slidably engaged, and wherein said arms are supported for adjustment both laterally and longitudinally.

A still further object ofthe invention is to provide a novel and improved device of this general character wherein the armsmay be adjusted laterally or longitudinally" in accordance with a scale of unitsof linear measure, so that the device or instrument isadapted to the production of curves of known coordinates.

The invention consists in the details of construction and in-the combination and ar rangement of the several parts of our im: proved conform'ator' whereby certain im portant advantages are attained and the device rendered simpler, less expensiveand otherwisem'ore convenientand advantageous for use, as will be 'heremafterm'orefully set The novel features of our invention will hereinafter be definitely claimed.

In order that our invention may the better understood, we will now proceed to describe the same with reference to the accomp anying drawings, wherein Figure 1 is a View in top plan with aportion broken away of a conformator con structed in accordance with an embodimentof our invention Fig. 2 is an enlarged view partly inrear elevation and partly" in section of the device as illustrated in Fig. 1;

Fig. 3 is an enlarged sectional view taken substantially on the line 3-3 of Fig. 1;

Fig. l is an enlarged fragmentary view in end elevation illustrating a pivotal mounting for the arms as herein embodied;

Fig. 5 is anenlarged sectional view taken substantially on the line 55 of Fig. 1;

Fig. Gisan enlarged sectional view taken longitudinal margin of said base are the" arms 1 terminating 'in the upstanding'bea'rings 2. As is clearly illustrated in Figs. 2 and 4', the 'lower or bottoinface of" the extended portion of each -of-the armsl isflush' with the undenor bottorn face of'the base Bi Extending within each of the bearings 2' is a-short shaft ontrunnion'3, and the inner end portion of said shaft" or trunnionB at its central portionisprovided with a' flat extension 4 which overlies an end portion of a flat bare}. The bar 5 snugly fits between the shafts or trunnions'3'and theover lying e xtensim's 4e serve as-spacing members" and upon which rest the opposite end portionsof asecond fiat' bar 5 arranged in parallelism With thebar'5'. Thebars 5 and 6 are secured orancho'redto the inwardly directed extensions l' of the shafts o'r'trun mouse 3 by the screws 7, as is" particularly illustrated in Fig. 2. The second bar 6 is provided with a slot 8 disposed longitudinally thereof substantially its entire length, andsnugly fitting between the bars 5 and 6 are the blocks 9 having in threaded engagement therewith clamping screws 10, and which screws are disposed through the slot 8. It will be self evident that upon requisite turning of each of the screws 10 the -14 carried by a block 9 and which extension 14 is secured to the member 11 by a screw 15 or the like. The bar 11 freely contacts with the upper surface of the base B and the under face of said member 11 adjacent its forward or free extremity is provided with a transversely disposed groove or channel 16 which snugly receives the guiding key 17 secured to the upper face of the base B and arranged in parallelism with the bar 5.

Slidably engaged within the groove 12 of each of the members 11 is an elongated arm 18, and which arm is adapted for sliding movement longitudinally of the member 11. The forward end of the arm 18 terminates in advance of the outer or free end of the member 11 and said arm 18 is also disposed beneath a plate 19 overlying the upper face of the member 11 and bridging the slot 12 thereof. One end portion of the plate 19 is provided with a depending extension or flange 20 contacting with a side face of the member 11, and said extension or flange 20 is anchored to the member 11 through the medium ofa screw 21 or the like. Threaded through the plate 19 is a binding screw 22 which coact-s with the arm 18 for locking the same against longitudinal movement after said arm 18 has. been properly adjusted.

As is particularly illustrated in Fig. 3, the outer end of each of the arms 18 is provided with a laterally directed extension or lug 23 which isengaged within a groove or channel produced longitudinally of the spline or flexible band S, so that the desired fiexure may be applied to the spline or band S upon movement of'the arm longitudinally or laterally. If preferred, however, the outer end portion of each of the arms 18 may be provided with a cross head 24 engaged within the groove or, channel of the spline or band S or the outer extremity of an arm 18" may be provided with a rounded member 25 for coaction with the spline or band S. The spline or band S may be made of. celluloid or other material readily bendable, and said spline or band S is of a width whereby the same may engage a drawing surface or the like when the arms 18 are in theposition shown'in the accompanying drawings or have been swung backwardly an angle of 180 degrees. The swinging of the arms 18 in this manner is afforded by the mounting of the shafts or trunnions 3 with which the bars 5 and 6 are engaged. In order to lock the arms 18, or more particularly the members 11, in the position shown in the drawings, the bearings 2 have threaded therethrough clamping screws 26 for binding engagement with the shafts or trunnions 3.

The upper surface of each of the arms 18 has produced thereon graduations 27 arranged in accordance with units of linear measure, and which graduations coact with the outer end of the member 11 so that said arm may be extended or retracted in accordance with the occasions of practice. The upper face of the bar 6 is also provided with the graduations 28 arranged in accordance with units of linear measure, and coacting with said graduations is an index or mark 29 produced on the upper face of the extension 14 of each of the blocks 9, so that said blocks 9 or more particularly the arms 18 may be laterally adjusted or adjusted in a direction longitudinally of the base B as may be required in practice.

Through the medium of the graduations 27 and 28, a curve having known coordinates may be readily laid out, as the necessary longitudinal or lateral adjustment of the arms 18 may be obtained with exactness. To draw a curve through any number of known points, it is only necessary to move the members 11 laterally or in a direction longitudinally-of the base B to the required relative lateral distances and then to extend or retract the arms 18 in accordance with the various longitudinal distances. To draw a symmetrical curve it is only necessary to loosen the screws 26 and to swing the members 11 through 180 degrees.

It will also be self evident that the base B will afford suflicient weight whereby the instrument may be effectively maintained in desired position upon the surface being worked.

From the foregoing description, it is thought to be obvious that a conformator constructed in accordance with our invention is particularly well adaptedfor use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that our invention is susceptible of some change and modification without departing from the principles and spirit thereof, and for this reason. we do not wish to be understood as limiting ourselves to the precise arrangement and formation of the several parts herein shown in carrying out our invention in practice except as hereinafter claimed.

We claim:

1. A device of the class described comprising a base, a bar supported by said base for rotary movement, a multiplicity of members engaged with said bar and being capable of adjustment one independently of the other longitudinally of the bar, said members being in parallelism, arms slidably engaged with said members and movable longitudinally thereof, said arms ex tending beyond the members, a flexible spline with which the extended portions of the arms are slidably engaged, and means for locking each of the arms against move ment longitudinally of the member.

2. A device of the class described comprising a base, a bar supported by said base for rotary movement, a multiplicity of members engaged with said bar and being capable of adjustment one independently of the other longitudinally of the bar, said members being in parallelism, arms slidably engaged with said members and movable longitudinally thereof, said arms ex tending beyond the members, a flexible spline with which the extended portions of the arms are slidably engaged, means for locking each of the members against movement longitudinally of the bar, and means for locking each of the arms against movement longitudinally of the member.

3. A device of the class described comprising a base, a plurality of members overlying said base, means connecting the members to the base whereby the same may be laterally adjusted one independently of the other, a face of each of said members being longitudinally grooved, an arm slidably engaged within the groove of each member, and extending beyond an end of said member, a plate carried by each of the members and extending across the groove and the arm therein, a flexible spline with which the extended portions of the arms are slidably engaged, and a clamping member carried by each of the plates and coacting with an arm for holding said arm against longitudinal movement.

4. A device of the class described comprising a base, a plurality of members overlying said base, means connecting the members to the base whereby the same may be laterally adjusted one independently of the other, a face of each of said members being longitudinally grooved, an arm slidably engaged within the groove of each member and extending beyond an end of said member, a plate carried by each of the members and extending across the groove and the arm therein, and a flexible spline with which the extended portions of the arms are slidably engaged, the opposite face of each of the members being provided with a transversely disposed groove, and a guiding key carried by the base and snugly fitting within the groove of each of the members when said member is in contact with the base.

In testimony whereof we hereunto aflix our signatures in the presence of two witnesses.

CHARLES A. NEWBERG. EDWARD I. WEISBERGER.

Witnesses PHILIP FERTEL, MORTIMER LIFLAND.

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