USRE16910E

USRE16910E - Incobpobated

Info

Publication number: USRE16910E
Authority: US
Publication date: 1928-03-20

Description

March'ZO, 1928.

T w. CASE TALKNG PICTURE MACHINE originl Filed July 24. 192e 12J; 1 0R BY W1 TNE'S S EYS l Hrm Reuma Mar. zo, 192e.`

' UNITED STATESv rnnonomi wxLLAnD oAsE, or AUBURN, maw` Your, Assreuon'ro AsE mnemon- LABonATonYJNconronA'rED, or AUBURN, New roux, A* eonronArIoN-or NEW YORK.

TALKING-PICTURE MACHINE. l.

riginal N0.1,638,393, dated August 9,1927, Serial No. 124,723, Aled July 24, 1928. Application for remue nled october 4, V1921. serial no. 223,984.

This invention ,relates to certain new and useful improvements in talking picture machines.

In the production or reproduction of a film record corresponding to sound wave variations, it is essential that the film should move in close relation with the slit through which the film is exposed to light rays, and

thelnain object of this invention is the production of a structure in which the film is -pre-ssed or held tightly against the track or tracks of the slit containing unit or structure, while at the same time the portion of the film constituting or adapted to constitute the sound recordportion is not exposed to' frictional or sliding contact with the member or members Whichrmaintain the film against .the track or tracks, whereby the possibility of injuring the record is eliminated.

The maintenance of the sound record portion of the record element, as a negative, or a positive produced therefrom in uniform and smooth relation with the supporting track,'is effect-ed bythe use of two shoes, or

in this illustration flanges disposed upon opposite sides of the sound record portion of said element, and bearing against thefilm, negative or positive upon opposite sides of the Sound record', so as to effect the desired result without Acontact of the shoes with the soundcrecord portion of said element- Other objects and advantages relate to the details of the structure and the parts thereof, all as will more fully appear from the Y icture unit'ineluding a fixed .slit unit o'f.

esired construction. The replaceable talkin picture unit comprises a body section fincluding a flange -3, in this inv4picture machine, a portion stance extending at substantially right aninto openings in the-Wall -1 ofthe moving picture machine.

The body sectionA 2- further includes longitudinally extending tracks '-5- and -'-6-.-, in this instance spaced apart and elevated above the central portion of the body `-2 and` longitudinally extending lateral guides -6-- and -7'.- disposed upon opposite sides of and elevated above the re-v spective tracks -.-5- and -6- and upon "which tracks'the film A is adapted `to ride between the guides -36- and -7-.

One of these guides as -7- is' preferably laterally movable with respect to the body --2- s o as to tightly engage the adjacent edge ofthe film Awand hold the opposite edge in contactA with the guide --tiw. rFor this reason the ,guide -7-1- is formed Wit-h laterally extendingslots -8- adapted to receive screws -9- which extend into openings in the body, and as the strip 7 lies in substantial contact with the wall --1-, this wall is formed with one ormore recesses l0-- adapted to receive coil springs' -11- which bear against the outer edge of the guide -7- and tend to force it inwardly toward .the guide -36- so that the film will at all times be tightly continedbetween the guides.

The track --5- in this illustration is formed with a recess within which there is secured by Acementing or otherwise, a slit unit -12- or a member containing an elongated extremely narrow slit -13-, the body --2- being formed with a comparatively' large opening underlying the slot so that vlight rays from a suitable source may pass thi-ou h the body and the slot to the film. This slit unit 'may preferably be constructed of a base `as glass, having deposited thereon in vaporplate -14'- of a transparent material, such izedformor in the form of minutely subdivided particles an extremel thin layer glass -16- is then securedby such a mate- \-15- of opaque material, suc l as ay metal,-

rial as. Canada balsam permanently in place At a vpoint overlying the slit 13 the base over-fthe slot -13, and is preferably of a of the groove or channel -2- is formed size substantially equal to the size of the base with an opening 27 here shown as of circu- -plate v-11- so as to form a .symmetrical lar form, altho theform--and size may' be 5 unit. f varied. The shoesv are supported 70 This -unit is placed in therecess formed in from the plate +20- by means of pins the track -5- adapted to receive it, and the '-31- secured to the shoes and extending recess is referabl of such'a size that the through the plate in a-y slidable manner, slitl unit ts it, an the surface of the cover springs 22- beingmounted on the ins beglass -16- is fiush` with the surface of the neath the shoes and the plate so t at the 75 track.l shoes are urged by respective springs toward This slit unit constitutes a] means for limthe tracks -5- and 6 toresiliently hold itin the area of the recordfelement', exposed the film in contact with the tracks. to lght rays at any timelztof' anV elongated The telescoping 'tubes 18-I and -19 Anarrowline so that there continuously passes are 4slidably secured together by means of 80 to thefilm a slit4 of lighter a narrow elonstud 2fsecured to the' tube 4418- and gated line of']ig}v1f, qf. fV l extending outwardly therefrom! and posi- In order to proventi-the accumulationl of tioned in an elongated slot-25- in the dirt and foreign matterk at the; juncturevof tube 1Q- l y 20 the guide -36- and track 5 at a'vpoint With this construction the film is held in 35 adjacent the slit -13--, the guide -36- is tightcontact with the tracks -'-5- and --6-V cut away at its inner edge so'as to forma latand the longitudinal'` channel 'or groove eral recess --17- which preferably extends -26--' in. the shoe 2lpermits the pasvrsome distance upon opposite sides of the slit sage of the sound record beneath the shoe l'unit l2- and the floor of this recessis without friction'al or sliding' contact vof the 90 flush with and forms a continuation/of the shoe with the. effective portion of the sound track -5- so that there is no angular part record, while they opening 27- through at points adjacent the slit unit tofcollect dirtthe base of the 'channel or g-roove at .a point v or foreign matter. registering with or overlying the slit 13- Means is provided for holding'the film in permits the passage of light rays' tc and from 95 tight contact with the tracks 5 and the film. v i j -6-, and in this illustration that' means The shoe .-22- and the fiange or shoe takes the form of telescoping tubes--lS- -50- Contact with opposite edges of the and -l9'-, one ofiwhich as 18 is conrecord element and hold it in contact with nected at its base by screws or otherwise to the respective tracks 6- and -5-, while 100 the wall -1 of the moving Vict'ure mathe flange or shoe 51 is in effect a third chine, and the other section, suc as' -19- shoe disposed between the two first-'named carries at its forward end a plate -20-, shoes and spaced from the shoe 50- a disw'hich plate in turn carries a plurality of., in tance substantially equal to the width of the 40 this instance two, shoes -21-, one for presssound record portion of the element and as- 105` ing the flminto contact with each of the sisting in holding the record element in conftracks '54- and ,-6-, and the shoe which tact with the track --5-. is adapted to hold the film in contact with 'The novel features of the structure here the track -.5- is formed with a longitudidisclosed, except those specifically relating nal groove -26- extending throughoutsubto the longitudinal groove -2 6` in the shoe 110 istantially the entire length of the shoeand forming in effect two shoes -'50- and registering with or overlying the narrow `-51- and the openingY 27 in the base :portion of the film which contains the of said groove or channel in combination v corresponding to sound wave variawith vthe other cooperating parts of, the.

wqtions'so that theportion b of the film in structure are claimed in my copending ap-` 115 l f passing; beneath the shoe -21-,- does not plication Serial No. 95,593 filed March '18, l tact with the shoe, but the flanges '-50 1926, for talking moving picture machines, and upon/opposite sides `of the and altho I have shown and describedia' speor channel bear-against the cie form of structure as constituting a perf filmattheopposite of thesound record haps preferred embodiment of this inven- 120 hold in'tiglit contact with the tion, 'I do not desire to restrict myself to the @details of the structureortheform thereof, an'ges and -'-51 y constitute asvarious chan es and modifications maybe finiefect' shoesspa'ced .apart a distance submade withinv ghe scope of the 'appended stantiallyequaltothe v width of the `sound claims. 125 "l''fecord portionof said element and bearing' -I claim :l v

against the element upon opposite sides o 1. A talking picture ap aratus'for'use in` said sound record ortion to maintain the connection [with a film avin a narrow yrecord element in at and uniform contact 'soundrecord near one edge of t e-lmcox'n-- l5 with the 1track-pli. .y prising a. body portion havngtracks at op- 130 posite sides upon which the film is adapted `to ride, and a shoe for holding the filrn in contact withl one of said tracks and having an elongated groove adapted to overliethe sound record portion of the film, a slit unit in the last-named track, and said `shoe having an opening Yleading to the groove and registering with said slit unit.

2. A talking picture apparatus for use in connection With a film having oradapted to have a narrow sound record near one edge of the film comprising a body portion having tracks at opposite sides upo'nwhich the film is'adapted to ride and a shoe for holding 'the film in contact with one of said tracks and having an elongated groove adapted to overlie the sound record portion of the film so as not to contact with this portion of the film, the ends of the side Wall upon opposite sides of the groove contacting with the film near opposite sides of the sound record, a slit unit in the last-named track and said shoe having an opening leading to the groove and registering with said slit unit to permit the passage of light rays.

3. In an apparatus for producing or reproducing sound pictures in connection with a film having or adapted yto have' a narrow sound record near one edge of the film, a body portion having tracks at opposite sides upon which the film is adapted to ride, and a shoe for holding the film in Contact with one of said tracks and having an elongated groove adapted to overlie the sound record yportion of the film, means permitting the passage of a line of light to the film through the base, and said shoe having an opening leading to the groove and registering with said means.

4:. In an apparatus for producing or reproducing sound pictures in connection With a film having or adapted to have a narrow sound record near one edge of the film, a

body portion having tracks at opposite sides upon Whichthe film is adapted to ride, and a shoe for holding the film in contact with one of said tracks and having an elongated groove adapted to overlie the sound record portion of the film so as not to contact with this portion of the film, the flanges or shoes upon opposite sides of the groove adapted to Contact with the iilm near opposite sides of the sound record, means permltting the passage of a line of light to a film upon said tracks andV said shoe having an opening leading to the groove and registering with said means to permit the passage of light rays.

5. In an apparatus for producing or reproducing sound pictures, a base having a pair of spaced tracks over which the record element is adapted to move', means for holding the sound record portion of said element in contact with one of said tracks comprising a pair of spaced shoes overlying the said track and contacting with the element on opposite sides of the sound record portion of the same, andmeansiiermitting the passage of a line of light to thevelement.

6. In an apparatusvfo'r producing or reproducing sound pictures, a base having a pair of spaced tracks over which the record element is adapted to move, means for holding thesound record portion of said element in contact with one of said tracks comprising a pair of spaced shoes overlying the said track and contacting with the element on opposite sides of the sound record portion of the same, means permitting the passage of a line of klight to the element, and an additional shoe for holding the other edge of a record element in contact with the other track. In Witness whereof` I have hereunto set my hand this 29th day of September, 1927.

THEoDoRE WILLARD CASE.