US1119885A - Casting apparatus for dental castings. - Google Patents

Casting apparatus for dental castings. Download PDF

Info

Publication number
US1119885A
US1119885A US73796812A US1912737968A US1119885A US 1119885 A US1119885 A US 1119885A US 73796812 A US73796812 A US 73796812A US 1912737968 A US1912737968 A US 1912737968A US 1119885 A US1119885 A US 1119885A
Authority
US
United States
Prior art keywords
section
flask
casting apparatus
prop
elevated
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
US73796812A
Inventor
Heinrich Schweitzer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US73796812A priority Critical patent/US1119885A/en
Application granted granted Critical
Publication of US1119885A publication Critical patent/US1119885A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth
    • A61C13/16—Curing flasks; Holders therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S164/00—Metal founding
    • Y10S164/04—Dental

Definitions

  • Casting machines operated with gaseous fluid pressure as a rule have an upper section which can be raised and lowered. If the upper flask section of such a casting apparatus is raised and held in an elevated position we speak of the fire position of the apparatus as the firing or melting of the cast metal can only be done when the flask sections are separated. Contrary to this we speak of the -pressure position of a casting apparatus when the upper flask section is lowered in order to make a seal against the lower section of a pressure flask.
  • Various means as for example a rack, bolt, or spring have been devised heretofore for holding the upper section in elevated position.
  • the object of my invention is an easy change of fire and pressure position of the casting apparatus by the use of a prop supporting the upper section of the flask in the elevated position.
  • Figure 1 is a lateral view of the apparatus holding the upper section of the pressure flask in elevated or fire position.
  • Fig. 2 shows a modified construction in elevated position of the upper section of the flask.
  • Fig. 3 illustrates the connection of a guide prop with an extension of the upper flask section holding the latter in elevated position.
  • Figs. 4 and 5 indicate the pressure position of the upper section of the flask.
  • Fig. 6 shows the casting apparatus with parts of the base and flask in vertical section.
  • a support of the upper flask section of a casting apparatus by means of an upright prop is especially useful in casting machines of the type described by myself in U. S. Patent No. 1,046,113 where a direct source of pressure is used.
  • the adjustment of the prop may be varied; first, the prop, P, Fig. 1 may be simply posted into perpendicular position between the base, B, and the metal extension, A, which carries the upper flask section, N; second, the prop, P Figs. 1 and i, may be hinged to the base and the free end swung under the shoulder, K, of the exten sion, A, holding the upper flask section; third, the prep, 1", Figs.
  • the prop, P Figs. 3 and 6 may be stationary connected with the metal extension, A, rest on the top part of the base, B, when the upper section is elevated and turned in axial direction, and pass down in the guide hole, Ii -R when turned back over said guide hole.
  • a rotation of the upper flask section in its elevated position around the Vertical axis will always free said section from the support by removing one end of the prop from its point of adjustment.
  • I provide a perforation from R to R in the upper bracket of the base, B, for the passage of the prop, P.
  • the prop In the elevated position (Fig. 3) the prop can be moved out from the perforation and off from this direction by an axial movement of the upper flask section around its vertical axis.
  • the end, E, of the prop, P then rests in the elevated (fire) position upon the upper surface of the base, B, and thus holds the flask section in elevated position.
  • a casting apparatus for dental castings and the like having a base and a pressure flask consisting of an upper and a lower section, a guide prop attached to the upper flask section for guiding the upper flask section in its plunging movement and structural means allowing for the arrest and release of the upper flask section in elevated position by a variation of the position of the upper flask section in axial direction.

Description

H. SCHWEITZER.
CASTING APPARATUS FOR. DENTAL GASTINGS.
APPLICATION FILED DEC. 21. 1912.
Patented Dec. 8, 1914.
HEINRICH $CHWEI'IZER, OF NEW YORK, N. Y.
CASTING APPARATUS FOR DENTAL CASTINGS.
Specification of Letters Patent.
Patented Dec. 8, 1914.
Application filed December 21, 1912. Serial No. 737,968.
To all whom it may concern Be it known that I, HEINRICH SCI-IWEIT- znn, a subject of the German Emperor, residing in the city, county, and State-of New York, have invented new and useful Improvements in Casting Apparatus for Dental Castings, of which the following is a specification.
Casting machines operated with gaseous fluid pressure as a rule have an upper section which can be raised and lowered. If the upper flask section of such a casting apparatus is raised and held in an elevated position we speak of the fire position of the apparatus as the firing or melting of the cast metal can only be done when the flask sections are separated. Contrary to this we speak of the -pressure position of a casting apparatus when the upper flask section is lowered in order to make a seal against the lower section of a pressure flask. Various means as for example a rack, bolt, or spring have been devised heretofore for holding the upper section in elevated position.
The object of my invention is an easy change of fire and pressure position of the casting apparatus by the use of a prop supporting the upper section of the flask in the elevated position.
Figure 1 is a lateral view of the apparatus holding the upper section of the pressure flask in elevated or fire position. Fig. 2 shows a modified construction in elevated position of the upper section of the flask. Fig. 3 illustrates the connection of a guide prop with an extension of the upper flask section holding the latter in elevated position. Figs. 4 and 5 indicate the pressure position of the upper section of the flask. Fig. 6 shows the casting apparatus with parts of the base and flask in vertical section.
A support of the upper flask section of a casting apparatus by means of an upright prop is especially useful in casting machines of the type described by myself in U. S. Patent No. 1,046,113 where a direct source of pressure is used. The adjustment of the prop may be varied; first, the prop, P, Fig. 1 may be simply posted into perpendicular position between the base, B, and the metal extension, A, which carries the upper flask section, N; second, the prop, P Figs. 1 and i, may be hinged to the base and the free end swung under the shoulder, K, of the exten sion, A, holding the upper flask section; third, the prep, 1", Figs. 2 and 5, may be hinged to the extension, A, and the free end, E, swung on top of the base, B, thus holdmg the upper flask section elevated; fourth, the prop, P Figs. 3 and 6, may be stationary connected with the metal extension, A, rest on the top part of the base, B, when the upper section is elevated and turned in axial direction, and pass down in the guide hole, Ii -R when turned back over said guide hole. A rotation of the upper flask section in its elevated position around the Vertical axis will always free said section from the support by removing one end of the prop from its point of adjustment.
In the preferred construction illustrated in Figs. 3 and 6 I provide a perforation from R to R in the upper bracket of the base, B, for the passage of the prop, P. In the elevated position (Fig. 3) the prop can be moved out from the perforation and off from this direction by an axial movement of the upper flask section around its vertical axis. The end, E, of the prop, P, then rests in the elevated (fire) position upon the upper surface of the base, B, and thus holds the flask section in elevated position. An axial return of the upper flask section Will bring the prop, P, back into the position over the opening, R, in which position the said flask section is allowed to pass down guided by the prop, P fitting into the perforation, R-R- Having now fully described my invention I claim:
In a casting apparatus for dental castings and the like having a base and a pressure flask consisting of an upper and a lower section, a guide prop attached to the upper flask section for guiding the upper flask section in its plunging movement and structural means allowing for the arrest and release of the upper flask section in elevated position by a variation of the position of the upper flask section in axial direction.
HEINRICH SCHIVEITZER.
\Vitnesses:
FRANCIS OVARY, 7M. H. Knosn.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.
Washington, D. G.
US73796812A 1912-12-21 1912-12-21 Casting apparatus for dental castings. Expired - Lifetime US1119885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US73796812A US1119885A (en) 1912-12-21 1912-12-21 Casting apparatus for dental castings.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73796812A US1119885A (en) 1912-12-21 1912-12-21 Casting apparatus for dental castings.

Publications (1)

Publication Number Publication Date
US1119885A true US1119885A (en) 1914-12-08

Family

ID=3188051

Family Applications (1)

Application Number Title Priority Date Filing Date
US73796812A Expired - Lifetime US1119885A (en) 1912-12-21 1912-12-21 Casting apparatus for dental castings.

Country Status (1)

Country Link
US (1) US1119885A (en)

Similar Documents

Publication Publication Date Title
US1119885A (en) Casting apparatus for dental castings.
US809310A (en) Copy-holder.
US1209254A (en) Telephone-stand.
US1199059A (en) Instrument for use in raising and lining railroad-tracks.
US540434A (en) Camera-stand
US725808A (en) Lamp-bracket.
US449028A (en) Friedricii beilmann
US785624A (en) Telephone desk set.
US60699A (en) gumming
US849656A (en) Display-cabinet.
US1262433A (en) Scriber-gage.
US1284701A (en) Thrust-bearing.
US635364A (en) Overhead hose-supporter.
US1045069A (en) Hose-support.
US442523A (en) Friedricii iiinkel
US71826A (en) Improvement in plumbers and painters lamp
US293633A (en) James m
US262984A (en) Table-leaf support
US366014A (en) Charles maschmeyer
US831811A (en) Skirt-marker.
US870008A (en) Amplifying-horn support.
US319061A (en) Extension-chandelier
US816974A (en) Folding seat for metal beds.
US690169A (en) Gas-conducting device for linotype melting-pots.
US445555A (en) hegel