US1627114A - Projecting apparatus - Google Patents

Description

2 Sheets-Sheet l PROJECTING APrARATUs Filed Deo. 17. 1921 JfA. PERRAULT ET AL May 3,1927.

May 3 1927 J. A. PERRAULT ET Al.

PROJECTING APPARATUS Filed Deo. 17. 1921 2 Sheets-Sheet Patented May 3, 1927.

nirso sms remis n. riinnnum, or LOWELL, ivInssACHnsnr'rs. .een nenes innen. or essonne.

NEW sons., Assrenons rro nncnnefron enonoennrsi Conronnrron', on MASSACHUSETTS, A CORPORATION or Messncnesnrrs.

s le p'licaton lcd December l?, 3195.131.

This invention relzites to projectiefr eppnratus end the object of the invention is to provide s.. motion picture projecting no paratus for projecting films of the type dis closed in our application i'iled December l@ i927., Serial Number 523.184.

ln the seid application is disclosed end clninied en endless 'film heving; pictures printed thereon in n plurality or' adjacent rows seperated by pcrforetions.`

The apparatus according` to this invention is designed to project seid nini hy providii'ig suitable niechanisni engaging seid `iertorntions to operate the iilni pest suiten lele projecting lenses.

ln the drawing accompanying this speciiicetion., i

WFig. l is o vertical central sectional View of e motion picture apparatus showing` the casing'u iilrn driving and projecting neens as well es the electric light and other details..

lig. 2 is n sectional View ot the motion picture apparatus taken on line 2 2 ci igure i.

`Fig.. 3 is n similar View teken on iine 3-3 of Figure l.

Fig. i is a sectional detail View et the ineens igor keeping that 7position of the iilin which is being projected in proper relation to the projecting` lenses.

lig. is n diagrammatic View illustret ing the iilrn..

Referring to Figure 5 the reference nuineral l() denotes en endless nlm provided with rows of pictures ll seperated hy rows ot perforetions 12. The joined ends oi the iilin i3 and 14 are olf-set with respect vto each other so that When the film is open ated, es ley suitable sprocket Wheels engaging the said peritorations, the pictures will he operated in succession past n given point for projection purposes. The construction of the Alrn and the arrangement ci the picM tures and perforations are fully disclosed in the application referred to.

Referring to the drawings the numeral denotes a suitable bracket or hase for the support of the machine and which bracket may he secured to a cabinet or Serial No. e.

stand represented hy n Wall or portion 26. A partition 2? is adapted to cover the hase g5 to rorin s grease chamber Within the esseu which is circuler es shown in Figure 3.

ljhe projecting inechsnisin is contained witn a cylindrical hollow casino,` 29 Ywhich issecured to the hase screws 8G. The end of 'the cresingr is closed loi; cover Suite-luigi 'ournnled in s. heer-ine; end in the partition 2 is ooerstin.gshaft which carries e "plurality or sprocket rlieeis 23, 23 properly spaced on the shaft hy sleeves 33. Wlieei has e. ire? which tits in e. key-Way 85 in the .shaft wlierentf ell the sproci Wheels nre properly aligned.. seen in Figures 2 end 3, the casino; 29 is cut out opposite each wheel to forni en oioening; 3G through which the teeth on the eels project.

A suitable illuminating ineens such es en electric vlerne 3'? is provided in the casing and niet] he focussed or adjusted with re spect to the projecting' ineens7 i. e., lenses 22. is shown, the leinp may he mounted in s. hess 38 vfrictionelly tted Within s tlsnge 39 `for 'purposes et adjustment. The casing is provided with e proiecting onening e0, see Figure 2, end inside the casing and in line with seid opening there ere nrovided suitable iight concentretinga lenses ei, el in e. housing 4t2. A shutter i3 is carried hy n shaft ie journsled in e bracket e5. Fihe shutter sliett is driven :troni the shutter operating shai't 4:6 icy hei/el gears e?. The shaft d@ is Iiourneled in the bracket i5 end the aforesaid partition 27 es shown..

The ilrn operating sheit 24: is driven intermittently from the driving shaft i8 located in the bracket 25 hy ineens ci? o., Geneve. stop movement rnechenisni comprising the slotted disk i9 tast on the said shaft 24 end operated hy the pin 50 in the driving gear 51,Wl1ile 52 indicates the usuel stop com. rIhe driving gear '5l is Jliest on the driving shaft 48 which carries e ily Wheel 53 to regulate the speed. A connection 54: may .loe used to connect the driving shaft to e source of power. lThe shutter operat ing shaft i6 carries e gear 55 which meshes with an idler gear 56 driven from the driving gear 51. |Ihe gears and the Geneva stop movement are all contained within the grease chamber 2S, which may be filled with grease to render the operation noiseless.

The reference numeral 6G denotes a cover, which extends the length of the casing 29 and is semi-cylindrical or curved in cross section. rI`he cover is hinged to the bracket by means of lugs 6l and pivots 62. The free end of the cover rests upon the end cover 8l of the casing. vided for lifting the cover and swinging 1t about its pivots 62 aforesaid. 'Ihe cover carries the projecting means 22 comprising suitable lenses 6d in an adjustable housing G5. rIhe cover further carries a framing member 66 which is in the form of a strip of thin metal, see Figures 2 and 4, which is secured to the cover b v springs 6T held by screws or rivets 68 and provided with an opening 69.

In operating the projection apparatus, the cover is lifted and swung about its pivots 62, thus exposing the top of the casing 29 and the sprocket wheels 23 through the openings 36.V The operator then takes the film and places it around and upon the casing by slipping the film endwise in over the casing. rlhe first picture is placed in register with the projection opening- 40, and as the film hangs down over the casing the perforations 14 naturally engage some of the-sprocket wheels. Looking at Figure l, the film will thus engage the four wheels 23 situated to the right of the lamp 37. Next to the cover is lowered until it rests upon the casing cover 31 whereby there is formed a narrow semi-cylindrical chamber or passage 70 extending the length of the casing. In closing down the cover the framing member 66 is brought into yielding engagement with the film to both sides of the projecting means and as the film passes around the casing, said framing member by keeping it in close contact with the casing, prevents slipping or displacement of the film and frames the pictures correctly. The

opening 69 in the framing member registers of course with the opening in the casing 29.

The machine is then started by applying i power to the driving shaft 54 whereby the film, through the instrumentality of the sprocket wheels 23 will be operated intermittently in the usual manner and the pictures will be successively projected as will be understood. During this operation the film will be rotated around the casing 29 and will also be moved axially thereof9 or in other words, the lm will be moved spirally mail,

t handle 63 is proaround the casing until all the pictures have been projected.

rlhe apparatus as herein disclosed is very simple in construction and may be produced at a low cost. It is particularly well adapt-y ed for shipping or carrying about.

It will be understood that the construction set forth is illustrative and may be altered and changed without departing from the principle of the invention or the scope of the appended claims.

'tlf e claim:

l. A. motion picture apparatus comprising a cylindrical casing, a cover therefor, cooperating film projecting means carried by said casing and cover, and means for operating a motion picture film between said casing and cover to cause the film to be projected by the said co-operating film projecting means.

2. A motion picture apparatus comprising a cylindrical casing, a cover therefor hinged at the one end of said casing, which latter is arranged to receive an endless motion picture film lengthwise thereof, said film being adapted to rest upon the said casing beneath the said cover, co-operating projection means carried by said casing and cover, means for registering the film with respect to said projection means and means within said casing, but projecting therefrom, for operating said film past the said projection means to cause said film to be projected.

3. Av motion picture apparatus comprising a. cylindrical casing, a cover therefor hinged at the one end of said casing., which latter is arranged to receive and support upon its top curved surface an endless motion picture lm lengthwise thereof, said film being vadapted to rest upon the said casing beneath the said cover, cooperating projection means carried by said casing and cover, means for registering the film with respect to said projection means and means within said casing, but projecting therefrom and engaging the film for movmg the same both lengthwise and sidewise, for operating said film past the said projection means to cause said film to be projected.

4. In a moving picture apparatus the combination of a drive shaft, a lm operating shaft intermittently driven therefrom and carrying a series of sprocket wheels, a shutter operating shaft parallel to the sprocket shaft, a driving gear between said drive shaft and said shutter operating shaft and a vertical shaft geared with the shutter operating shaft and carrying the shutter.

JULES A. PERRAULT. HENRY LUB.

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