US1464987A - Tray - Google Patents

Description

Aug. M, 1923. 1,464,987

- O. L. F.- HAGGARD ET AL TRAY Filed March 25. 1922 2 SheetsShe et 1' Aiu 1-4, 1923. 1,464.98?

o. L. F. HAGGARD ETAL TRA-Y Filed March 25 1.922 2 Sheets-Sheet 2 Patented Aug. 14, 1923. I i I OLIVER LAND FRANCIS HAGGARD AND THOMAS OLIN RUSH, OF GADSDEN, ALABAMA TRAY.

Application filed March 25, 1922. Serial No. %,611.

To all whom it may concern. it is desired to make an upper set. Wings 12 Be it known that we, OLIVER L. F. HAG- are pivoted or hinged at 14 to the outer edge l omen and THOMAS O. ltn'sri, citizens of the or the body 11 and extend around to the United States, residing at Gadsden, in the front of the body. A handle 15 is secured o'county of Etowah, State of Alabama, have at 16 to the body and has a suspension open- 5 invented a new and useful Tray, of which ing 17.

the following is a specification. Any suitable means may be employed for The device forming the subject matter of swinging the wings 12 inwardly and out this application is a dental impression tray, wardly. Thus, if desired, the forward ends 10 and the invention aims to provide novel of the wings 12 may be supplied with eyes means whereby the impression material may 8 wherein the rear ends of operating rods be compressed in the mouth of the patient, 19. are pivoted, as at 20, the rods 19 being to insure a perfect and clear impression. loosely mounted for longitudinal and lateral It is within the province of the disclosure swinging movement in a guide 21 on the han- 15 to improve generally and to enhance the utildie 15, the rods terminating at their forward ity of devices of that type to which the inends in lingers 22 projecting away from the vention appcrtains. handle 15, hen the rods 22 are thrust in 7 In the accompanying drawings the direction of the arrowA in Figure 5, the Figure 1 shows in top plan, a tray used in wings 12 will swing outwardly in the direc- 20 the formation of a lower set; Figure 2 is a tion oil? the arrow B in Figure 4., and when section on the line 22 of Figure 1; Figure the rods 19 are moved in a direction opposite 3 is a transverse section showing the mountto that indicated by the arrow A in Figure ing of the wings; Figure l is a top plan of a 5, the wings 1.2 will swing inwardly, in a ditray used in the formation of an upper set; rection opposite to that indicated by the ar 5 25 Figure'5 is a section on the line55 of Figrow 13 in Figure a, and effect a. compression ure 4-; Figure 6 is a rear end elevation of the oi the impression. material. tray depicted in Figures 1 and 5. What is claimed is 7 Referring to Figures 1, 2 and 3, the tray 1. in dental impression tray comprising a comprises a U-shaped body 1 which is handle, a body secured to the handle, wings 3o trough-shaped in cross section, a projecting hinged to the edges of the body for swinging handle 2 being secured to the body 1 of the movement toward and away from the protray as shown at 3, the handle having an longed axis of the handle, and means assemopening 4 whereby the tray may be convenbled with the handle and with the wings to iently suspended when not in use. Wings 5 cause the wings to swing toward and away are hinged at 10 to the inner edges of the from the prolonged axis of the handle.

body 1 and the rear end thereof. Any suit A dental impression tray comprising a able means may be provided for swinging handle, a body carried by the handle, wings on the wings 5 to secure acompression of the hinged to the edges of the body for swingimpression material. If desired, the wings ing movement toward and away from the 10 5 may be supplied with eyes 6 wherein the prolonged axis of the body, a guide on the reduced ends 7 of crossed levers 8 are loosely handle, and operating members mounted in and pivotally received, the levers 8 being the guide for longitudinal movement and for tulcrumed at 9 at their point of crossing, lateral-swinging 'movemcnt, the operating on the handle 2. 7 members being pivoted to the wings.

It is obvious that when the device is placed In testimony that we claim the foregoing in the mouth of the patient, the outer ends as our own, we have hereto afiiXed our 1 V of the levers 8 may be swung toward each signatures in the presence of two witnesses.

other, thereby movin the rear ends 7 of the levers in an ontwarcf direction, the wings 5 @LIVER LAND FRANCIS HAGGARD.

. THGPHAS DUN RUSH. r 50 swinging laterally and eflecting a eompression ofthe material. WVitnesses:

In Flgures 4, 5 and 6, the tray comprises J. A. DANIEL,

a body 11 of the usual form employed when A. RICHARDS.

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