Feb. 28, 1928.
`
`Cc. A. HIRTH
`
`~ 1,660,792
`
`SHAFT COUPLING
`
`Filed Sept. 27, 1926
`
`2-Sheets-Sheet
`
`1
`
`Fig «J
`
`
`dS| a
`3
`
`
`AU
`
`ACKUGY,) SS
`
`
`
`
`
`
`
`
`
`Eltlous ery:
`
`SONYExhibit 1024
`SONY Exhibit 1024
`SONY v. FUJI
`SONYv. FUJI
`
`

`

`Feb. 28, 1928.
`
`1.
`c. A, HIRTH
`
`| 1,660,792
`
`
`
`
`
`
`
`fto\
`
`
` |
`
`
`A
`\
`
`
`
`
` ke
`
`
`
`
`
`
`
`efile
`
`
`
`
`
`:
`
`
`
`
`
`
`
`
`
`a
`
`_ a
`
`AX
`
`|
`Feo.
`er oe f
`ef
`
`
`
`
`
`
`eel
`
`¢
`
`-
`
`SH
`
`
`| Z4SS
`
`
`
`ZA
`
`\
`
`
`
`
`
`

`

`Patented Feb. 28, 1928.
`
`(1,660,792
`
`UNITED STATES
`
`PATENT OFFICE.—
`
`bed
`
`CARL ALBERT HIRTH, OF NONNENHORN-ON-THE-BODENSEE,GERMANY.
`SHAFT COUPLING.
`Application filed September 27, 1926, Serial No.138,052, and in Germany December 23, 1924.
`My invention relates to shaft couplings,
`the inner ends of two rings ¢’, ¢? which
`more especially of the kind comprising sym-
`are placed over. the rings d.
`metrical serrations with teeth the faces of
`A similar construction is shown in Fig.
`which are inclined to the axis of the shafts
`6 but here only onering d’ “is provided in.
`5 and the crest and root lines of which are
`a groove of the shaft }, the other ring being
`arrangedradially to the axis of the shafts.
`replaced by a threaded ring ¢* engaging a
`Lt isan object of my invention to provide
`groove in the shaft @ on which ring éis -
`a coupling of the kind described devoid of
`secured a sleeve e* which engages behindtho -
`allintermediate parts, the ends of the shafts,
`ringd’.
`.Thisconstruction dispenses with a
`' 10 engaging directly so that they are coupled
`separate sleeve g and with the necessity of.
`more accurately and with higherefficiency.
`providing opposite threads on the sleeves
`In the drawings affixed to. this specifica-
`é and e¢?,asin Fig. 2.
`tion and forming part thereof several cou- .
`A form in which opposite threads are also —
`-plings embodying my invention are illus-
`eliminated is shownin Fig. 3. Tt substan-
`5 trated diagrammatically by way of example.
`tially resembles: the form shown in Fig. 6
`In the drawings
`but the inner sleeve ¢°, instead of being in--
`Figs. 1, 2, 3, and 5 are partly sectional
`serted in.a groove of the shaft a, engages.
`elevations illustrating shafts of equal diam-
`a split ring d inserted in a groove at the
`eter, coupled together, while
`end of the shaft a. The corresponding
`Fig. 4 is a similar view showing coupled
`sleeve ¢° resembles the sleeve ¢* in Fig. 6°.
`.
`. shafts of different diameters.
`-
`:
`Fig. 5 illustrates a coupling in which the
`Figure 6
`is
`a partial
`sectional view
`shaft d has a smaller diameter than.
`the
`through the shaft. coupling showing a slight
`shaft a. The serrations ¢ are constructed ‘as
`modification in the coupling -means.
`above described and flanges’ ¢? and ¢°are
`In all figures,.@ and 0 are the shatts.and
`placed over the split rings d in both shatts
`¢ are the serrations.
`oe
`and are connected with any desired number
`Referring first to Figs. 1, 2, 8, and’ 5,
`of screws as described with reference to Fig.
`identical serrations ¢ are machinedor other-
`1, Obviously constructions as described
`wise made in the ends of the shafts to be
`with reference to the otherfigures mayalso ¢
`coupled. The faces of each tooth converge
`‘be provided. ne a
`toward the axis of the shaft and the crests
`I wish it-to be understood that I donot -
`and the roots of the serrations are arranged:
`desire to. be limited to the exact details of °
`on conical faces which intersect in the axis
`construction shown and described for ob?
`of the shafts. With good workmanship the
`vious modifications will occur to 2 person
`5 contact of such a coupling is excellent and
`skilled in the art.
`at the same time the shafts are centered due’
`IT claim :—
`1. A shaftcoupling comprising a pair of
`to the wedge-like shape of the teeth.
`Except in the modification illustrated in.
`shaft sections having central recesses in their.
`Fig. 4 the ends of the shafts are provided
`meeting ends and provided at their periph-
`with split rings d inserted in grooves near
`eral portions with annularseries of teeth ex-_
`the ends of the shaft.
`tending endwise from the shaft sections for
`In the modification illustrated in Fig. 1,
`interfitting engagement wher the shaft sec-
`flanges é areplaced over the rings and axia]
`tions are brought. together, said teeth con-
`thrust is exerted on these flanges. by screws
`structed with their mner faces converging
`7... Any number of such screws may bepro-
`and the roots and crests of the teeth pro-
`vided.
`ce
`viding elements of cones whose vertices lie
`Screws require a comparatively large di-
`in a common pointon'the axis of each shaft:
`ameter of the flanges, and in order to over-.
`section.
`.
`2. A shaft. coupling comprising a pair of:
`come this drawback, the screws can. be’ re-
`0 placed by a threaded sleeve. g as:shown in
`shaft sections of like construction: adapted to
`Fig. 2 which engages opposite threads.at
`abutat their ends, each shaft ‘section having
`
`ro
`
`5
`
`ww >
`
`

`

`2
`
`1,660,792
`
`a central opening in its end and an annular
`series of teeth about the opening and ex-
`tending lengthwise of the shaft section, the
`teeth having converging faces and having
`8 their roots and crests comprising elements.
`of cones whose vertices lie onthe axis of
`the shaft section, and means for adjustably
`
`drawing said shaft sections together in end-
`wise engagement with the teeth. in interfit-
`ting relation for taking up wear on the cone
`portions of the teeth and automatically cen-
`tering the shaft sections.
`,
`In testimony whereof I affix my signature.
`CARL ALBERT HIRTH.
`
`10°
`
`