US1024640A - Support and sound-duct for sound-boxes. - Google Patents
Support and sound-duct for sound-boxes. Download PDFInfo
- Publication number
- US1024640A US1024640A US56131210A US1910561312A US1024640A US 1024640 A US1024640 A US 1024640A US 56131210 A US56131210 A US 56131210A US 1910561312 A US1910561312 A US 1910561312A US 1024640 A US1024640 A US 1024640A
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- US
- United States
- Prior art keywords
- sound
- tone
- arm
- boxes
- duct
- 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
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
Definitions
- Grafonola or graphophone inclosed wit-hin a cabinet which conceals its horn, though of course it can be used with other types.
- ⁇ Figure 1 is a side View, partly in vertical section of a tone arm embodying my inver.- tionand applied to a Grrafonola;I Fig. 2 is a top view of the same, partly in horizontal section; and Fig, 3 is a transverse section, viewed from the right, through lines 3-3 "of Fig. 1.
- 1 is the base-plate (of the Grafonola, or other type of talking-machine).
- the upper (horizontal) end of the elbow-member 5 has a flaring mouth of hemispherical oi tline. Seatedtherein is the ring 8, whose outer surface is correspondingly convexei to fit the concave mouth ot' member 5.
- the ring 8 is pivoted within its seat in mimber 5,v by means of the horizontal screw-pins 9 9, whose inner ends furnish the jourials for the ring 8.
- the tapering tone-arm proper 10 has near its larger end a shoulder 11, beyond which 1s the ,cylindrical bearing-surface that journals 'or swivels withinv the bore of ring 8.
- the sound-box .14 may, if desired, be. made integral with the tone-arm; and it carries the usual stylus-bar for the reproducing-needle 15, which co-acts with the record on turn-table 2, in the well known manner.
- v 16 is a screw located in the lower part of the elbow-member 5, and enters a longitudinal. slot 17 in the'adjacent portion of ring 8 and of tone-arm v10. This engagement prevents tone-arm 10'v from tippingaxially; but by swinging the tone-arm and. soundbox upward (upon bearings 9 9), 'their slots are disengaged from pin 16, after which the tone-armcan vbe turned axially,
- the tone-arm 10 and its sound-box can swing freely in the horizontal plane, but the diaphragm of the sound-box cannot be tipped out of its vertical plane.
- thev tone-arm When, however, thev tone-arm is'swung up (on bearings 9-9), it may then be turned axially;l whereupon the pin 16 abuts, as a stop', against the inner end of the tone-arm, and holds the same securely away from the record.
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- Pivots And Pivotal Connections (AREA)
Description
, T. H. MACDONALD. surom AND soUnD Duo'rro soUND Bons.
APPLIGATIoy-HLED In 14,r 1910. p
Patented Apr. 30, 1912.
UNITED STATES PATENT oEEIoE.
THOMAS H. MACDONALD, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO AMERICAN GRAPHOPHONE COMPANY, 0F BRIDGEPOR'T, CONNECTICUT, A- CORPORATION OIE' WEST VIRGINIA.
Specification of Letters Patent.
' .Patented Apr, `3()` j Q1 n application filed May 14, 1910. Serial No. 561,312.
To @Zwhom fit may concern:
Beit known that I, THOMAS H.MAcnoN- ALD, a citizen .of the UnitedStates, and resichines, and is especially adapted for use.
with the so-called Grafonola or graphophone inclosed wit-hin a cabinet which conceals its horn, though of course it can be used with other types.
The invention consists of the construction and arrangement of parts, and will be vbest understood by reference to the annexed drawings in which- `Figure 1 is a side View, partly in vertical section of a tone arm embodying my inver.- tionand applied to a Grrafonola;I Fig. 2 is a top view of the same, partly in horizontal section; and Fig, 3 is a transverse section, viewed from the right, through lines 3-3 "of Fig. 1.
1 is the base-plate (of the Grafonola, or other type of talking-machine).
2 represents the turn-tablel and disk?l sound-record thereon. 1
ters the horizonta slot 7 in the member 5,.,
to permit limited )lay of the elbow upon a vertical axis. The upper (horizontal) end of the elbow-member 5 has a flaring mouth of hemispherical oi tline. Seatedtherein is the ring 8, whose outer surface is correspondingly convexei to fit the concave mouth ot' member 5. The ring 8 is pivoted within its seat in mimber 5,v by means of the horizontal screw-pins 9 9, whose inner ends furnish the jourials for the ring 8.
The tapering tone-arm proper 10 has near its larger end a shoulder 11, beyond which 1s the ,cylindrical bearing-surface that journals 'or swivels withinv the bore of ring 8. A pin 12, secured in ring 8, preferably depending from the top thereof, extends into an annular' groove or slot 13 i-n the adjacent portion of tone-arm 10, to permit limited axial turning of the tone-arm Within ring 8. f
The sound-box .14 may, if desired, be. made integral with the tone-arm; and it carries the usual stylus-bar for the reproducing-needle 15, which co-acts with the record on turn-table 2, in the well known manner. v 16 is a screw located in the lower part of the elbow-member 5, and enters a longitudinal. slot 17 in the'adjacent portion of ring 8 and of tone-arm v10. This engagement prevents tone-arm 10'v from tippingaxially; but by swinging the tone-arm and. soundbox upward (upon bearings 9 9), 'their slots are disengaged from pin 16, after which the tone-armcan vbe turned axially,
journaling in ring 8, so as to bring needlel5 uppermost for ready removal.
In, the position shown in Figs. 1 and 2, y
the tone-arm 10 and its sound-box can swing freely in the horizontal plane, but the diaphragm of the sound-box cannot be tipped out of its vertical plane.
When, however, thev tone-arm is'swung up (on bearings 9-9), it may then be turned axially;l whereupon the pin 16 abuts, as a stop', against the inner end of the tone-arm, and holds the same securely away from the record. p'
I have described my invention with some particularity, but only for the sake of clearness, since parts may be used to the exclusion of other parts, modifications ofl construction and arrangement mlght be resorted to, the device might be used with-some other type of talking-machine than the Grafonola, and other modifications might be made withoutl departing from the spirit of my invention.
Having thus described claim 1. The combination with the sound-box of a talking-machine, of a supportand soundduct therefor comprising a tubular member journaling in ai'ixed bearing, a second tubumy invention, I
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56131210A US1024640A (en) | 1910-05-14 | 1910-05-14 | Support and sound-duct for sound-boxes. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56131210A US1024640A (en) | 1910-05-14 | 1910-05-14 | Support and sound-duct for sound-boxes. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1024640A true US1024640A (en) | 1912-04-30 |
Family
ID=3092936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US56131210A Expired - Lifetime US1024640A (en) | 1910-05-14 | 1910-05-14 | Support and sound-duct for sound-boxes. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1024640A (en) |
-
1910
- 1910-05-14 US US56131210A patent/US1024640A/en not_active Expired - Lifetime
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