US1343664A - Compasses - Google Patents

Compasses Download PDF

Info

Publication number
US1343664A
US1343664A US303271A US30327119A US1343664A US 1343664 A US1343664 A US 1343664A US 303271 A US303271 A US 303271A US 30327119 A US30327119 A US 30327119A US 1343664 A US1343664 A US 1343664A
Authority
US
United States
Prior art keywords
rollers
shanks
recesses
handle
legs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US303271A
Other languages
English (en)
Inventor
Carl F Dieckmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dietzgen Eugene Co
Eugene Dietzgen Co
Original Assignee
Dietzgen Eugene Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dietzgen Eugene Co filed Critical Dietzgen Eugene Co
Priority to US303271A priority Critical patent/US1343664A/en
Priority to CH87572D priority patent/CH87572A/de
Priority to DE1920348704D priority patent/DE348704C/de
Application granted granted Critical
Publication of US1343664A publication Critical patent/US1343664A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/16—Features common to compasses, dividers, and callipers
    • B43L9/20—Pivots

Definitions

  • Figure 1 is a side view of an instrument embodying the invention, the lower portion of the legs being broken away.
  • Fig. 2 is a sectional view on the line 2--2-, Fig. 1.
  • Fig. 3 is a detail view showlng the centering plate, the conical rollers and associated parts.
  • Fig. 4 is a perspective view showing the inner face of the shank of one of the legs.
  • Fig. 5 is a face view of the centering plate.
  • Fig. 6 is a sectional view on the line 6( 5, Fig. 5, this View showing the rollers in posltion.
  • Fig. 7 is a view of one of the shanks.
  • Fig]. 8 is a sectional view on the line 8-8, l
  • the head comprises a handle 1 haying two depending arms a, 2.
  • a pivot p n 3 is adapted to pass through care of said arms and screw into the opposite one as best shown in Fig. 2.
  • a pin 4 is fastened at the lower end of the arms in such position as to pass between the branches 5, 5 of the lower end of the centering plate 6.
  • the two legs 7, 7 have shanks 8, 8 with recesses 9 formed in their inner faces for receiving the conical rollers 10.
  • the rollers are arranged radially with their smaller ends toward the center.
  • the centering plate has an aperture 11 for each of the rollers, the apertures being arranged equidistantly and practically conforming to the outline of the rollers.
  • the shanks 8 are countersunk on the outer faces to receive two washers 15, 1G.
  • the washer 15 is in the form of a segment of a sphere, the flat base resting upon the inner surface of one of the arms 2 and the spherical crown fitting into the countersink in the adjacent shank.
  • the washer is thick enough to maintain a space between the inside of the arm and the outside of the shank.
  • the washer 16 is in the form of a plain ring which, however, is thick enough to maintain a space between the shank in which it is countersunk and the adjacent surface of the arm 2.
  • Both of the washers encircle the pin 3, but the washer 16 has an internal diameter which is appreciably larger than the diameter of the pin, while the internal diameter of washer 15 is such as to make a turning fit with the )in.
  • the washer 16 is free to move slightly in a plane transverse to the pin. hen such movement occurs, the opposite shank will articulate upon the washer 15 after the manner of a ball and socket joint.
  • a device of the class described having a head, conical rollers, legs having shanks with annular recesses sunk in their inner faces to accommodate said rollers, and a con tering plate interposed between said shanks and having apertures to accommodate said rollers, said centering plate being connected to the head for holding it in central posi tion.
  • a device of the class described having a head comprisinc a handle and two depend ing arms, conical rollers, legs having shanks with annular recesses sunk in their inner faces to accommodate said rollers and a centering plate interposed between the shanks and having apertures to accommodate said rollers and be held in central position lrv them, said rollers being adapted to make end contact with the outer rims of said recesses.
  • a device of the class described having a head comprising a handle and two depending arms, conical rollers, legs having shanks with annular recesses sunk in their inner faces to accommodate said rollers, a centering plate interposed between said shanks and having apertures to accommodate said rollers, the edges of the apertures being fairly close to the sides of the rollers whereby the rollers keep the plate centered, said plate being connected to the head for holding it in central position, said rollers being adapted to make end contact with the outer rim of the annular recesses.
  • a compass having a head comprising a handle and two depending arms, two legs having shanks with concentric recesses sunk in their inner faces, said recesses having sloping sides, conical rollers the sides of which make line contact with one slope of the recesses and the ends make surface contact with the remaining slope of the recesses, and a centering plate interposed between said shanks and having apertures the sides of which are adapted to engage the sides of the rollers for holding the plate centered, the plate being connected to the head for holding the handle centered.
  • a compass having a head comprising a handle and two depending arms, two legs having shanks with concentric recesses sunk in their inner faces, said recesses having at least one sloping wall, conical rollers the sides of which make line contact with the sloping wall of the recesses and the ends make surface contact with the remaining wall of the recesses, a centering plate interposed bc 0 tween said shanks and having apertures the sides of which are adapted to engage the sides of the rollers for holding the plate centered, the plate being connected to the head for holding the handle centered, and a pivot pin mounted in the two depending arms, said pin making a turning fit with the centering plate.
  • a device of the class described having a head comprising a handle and two depending arms, two legs having shanks with concentric recesses formed in their inner faces, the recesses having sloping sides, truncated conical rollers rolling in said recesses and making line contact with one slope of the recesses and end contact with the other slope, the shanks having sockets in their outer faces, washers seating in said sockets and protruding from the outer surfaces of the shanks, and means for drawing the arms into contact with the protruding ends of the washers for holding the parts centered.
  • a device of the class described having a head comprising a handle and two depending arms, two legs having shanks with concentric recesses formed in their inner faces, said recesses having sloping sides truncated conical rollers rolling in said rccesses and making line contact with one slope of the recess and end contact with the other slope a centering plate interposed between said shanks and having apertures adapted to accommodate said rollers, the shanks having sockets in their outer faces, washers seating in said sockets and protruding from the outer surfaces of the shanks, and means for drawing the arms into contact with the protruding ends of the washers for holding the parts centered. 7
  • a device of the class described having a head comprising a handle and two depending arms, two legs having shanks with concentric recesses formed in their inner faces, at least one side of said recesses being sloping, truncated conical rollers rolling in said recesses and making line contact with one side of the recess and end contact with the other side, the shanks having sockcts in their outer faces, washers seating in said sockets and protruding from the outer surfaces of the shanks, and a screw pin for drawing the arms into contact with the protruding ends of the washers for holding the parts centered, one of said washers being in the shape of a segment of a sphere. and the socket in the shank which receives it being spherically concave to fit over the spherical portion of the washer, and the opposite washer having an enlarged internal diameter so that it may move slightly transversely to said pin.

Landscapes

  • Pivots And Pivotal Connections (AREA)
US303271A 1919-06-11 1919-06-11 Compasses Expired - Lifetime US1343664A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US303271A US1343664A (en) 1919-06-11 1919-06-11 Compasses
CH87572D CH87572A (de) 1919-06-11 1920-04-12 Zirkel.
DE1920348704D DE348704C (de) 1919-06-11 1920-05-09 Zirkel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US303271A US1343664A (en) 1919-06-11 1919-06-11 Compasses

Publications (1)

Publication Number Publication Date
US1343664A true US1343664A (en) 1920-06-15

Family

ID=23171291

Family Applications (1)

Application Number Title Priority Date Filing Date
US303271A Expired - Lifetime US1343664A (en) 1919-06-11 1919-06-11 Compasses

Country Status (3)

Country Link
US (1) US1343664A (de)
CH (1) CH87572A (de)
DE (1) DE348704C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559170A (en) * 1947-12-10 1951-07-03 Pickett Herbert Micrometer caliper with ball pivot and cam
US2582585A (en) * 1947-03-20 1952-01-15 James Mfg Co Inc Compass
US2794259A (en) * 1953-04-24 1957-06-04 Proebster Jr C Compass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582585A (en) * 1947-03-20 1952-01-15 James Mfg Co Inc Compass
US2559170A (en) * 1947-12-10 1951-07-03 Pickett Herbert Micrometer caliper with ball pivot and cam
US2794259A (en) * 1953-04-24 1957-06-04 Proebster Jr C Compass

Also Published As

Publication number Publication date
CH87572A (de) 1920-12-16
DE348704C (de) 1922-02-14

Similar Documents

Publication Publication Date Title
GB805928A (en) Improvements in or relating to wheel suspensions
US1343664A (en) Compasses
US1668839A (en) Adjustable step bearing
US2388950A (en) Roller-bearing joint assembly
US2582585A (en) Compass
US2110148A (en) Joint
GB1172930A (en) Improvements in or relating to Ball-and-Socket Joints
US1959563A (en) Automobile arm and rod conection
US1358543A (en) Caster
GB364860A (en) Improvements in tapered roller bearings
US1805992A (en) Bearing
GB890255A (en) Improvements relating to ball and socket joints
US1385947A (en) Caster
GB507025A (en) Improvements in and relating to universal joints
US1928930A (en) Knife edge bearing
US2333970A (en) Ball bearing
US1607584A (en) Ratchet brace
US1835991A (en) Means for securing antifriction bearings on shafts
US647675A (en) Ball-caster.
US762657A (en) Antifriction-caster.
US458684A (en) Caliper-joint
US2208276A (en) Joint for artificial limbs
US1741737A (en) Pivot and bearing
US697735A (en) Caster.
US1392067A (en) Spinning-ring