US429458A - kraemer - Google Patents
kraemer Download PDFInfo
- Publication number
- US429458A US429458A US429458DA US429458A US 429458 A US429458 A US 429458A US 429458D A US429458D A US 429458DA US 429458 A US429458 A US 429458A
- Authority
- US
- United States
- Prior art keywords
- seat
- seats
- spindle
- stool
- frame
- 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
Links
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C9/00—Stools for specified purposes
- A47C9/08—Music stools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/26—Chairs or stools with vertically-adjustable seats with vertical, or inclined toothed rack; with peg-and-notch mechanism
- A47C3/265—Chairs or stools with vertically-adjustable seats with vertical, or inclined toothed rack; with peg-and-notch mechanism with rack-and-pinion gearing
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/024—Seat parts with double seats
Definitions
- the object of this invention is to furnish zo animproved double piano-stool in which-both seats can be vertically adjusted together and each seat singly, and in which the seats can be laterally moved away from or towardl each other; and the invention consists of a piano- 2 5 stool in which two laterally guided and slid- ⁇ ing seats are supported on a common frame.
- Each seat is independently adjustable in vertical direction by means of a central rackbar, which is engaged by a pinion on a square 3o spindle that passes through one side wall of the lower part of the seat, the inner end of the spindle being acted upon by a spring, which forces the squared portion of the spindle into a square recess of a socket-platev of 3 5 the seat-frame, so as to lock the rack-bar and seat at any suitable height.
- Figure l represents a front elevation of my improved double piano-stool, showing the seats in their 4o normal position sidewise of each other.
- Fig. 2 is a plan of the stool with the seats moved sidewise on the supporting-frame.
- Fig. 3 is a vertical transverse section on line m fr
- Fig. 4 is a front elevation showing the seats moved away from each other, one of them raised above the other.
- Fig. 5 is a vertical section of one of the seats drawn on a larger scale, and showing the adjusting mechanism of the seat; and
- Fig. 6 is a horizontal 5o section on line 'y y, Fig. 5.
- upper seat part proper B2 The latter is guided the top, part A of the frame A are supported two seats B B, which are guided by longitudinal dovetailed cleats b in corresponding ⁇ grooves h oi' the top part A', so as to be adjusted in lateral direction away from each other, as shown in Fig. 2.
- the seats BB are thus supported, they are to be used for two persons-such as a teacher and his hpupil-onby two persons who play duets on the piano.
- Each seat B is made of a lower part B and an I 7o 1n the lower part by a central rack-bar C,
- V which is rigidly attached to the bottom of the seat'Bg, and is guided in an opening in the bottom of the lower seat-frame B and in a longitudinal slot a of the top A of the supporting-frame.
- the rack-bar C is engaged by a pinion d, which is attached to a spindle D, that passes through a hole in the outer side wall of the lower seat-frame B', the outer end of which spindle is provided with a knob D.
- the ends of the spindle D are rounded to turn in suitable bearings, While the intermediate part of the spindle is made square, so as to engage a socket-plate d2, attached to the inner surface of the outer side wall ofthe seat-frame B,which socket-plateis provided Withasquare recess t0 receive the square inner part of the spindle D.
- the opposite end of the spindle is supported in suitable bearings @and acted upon by a strong spiral spring e2, which latter serves to keep the square part of the spindle D in the square opening of the socketplate cl2, so as to keep thereby the spindle D, rack-bar C, and the seat B2 in locked position.
- the spindle D is pushed inward against the tension of the spring e2 until the square part clears the socket-plate cl2 and permits the turning of the spindle D on its axis, so Y that the pinion d, which meshes with the rack Ioo on the rack-bar C, raises or lowers thereby the seat B2.
- the spring e2 forces the spindle lengthwise and into re-engagement with the socket-plate (Z2, thus locking it and the seat in place.
- the pinion cl has to be of sufficient width to provide for the shifting of the spindle and still remain in mesh with the rackbar C.
- each seat B eitherseat can be adjusted to any suitable height as required by the persons occupying the same. After use the seats are lowered by pushing the spindle inward and turning the same until the seat arrives upon the lower seat-frame B', when the entire seat is moved inwardly on the top part A until the seats abut against each other.
- the combination with a supportingframe havinga longitudinally-slotted top part, of a laterally-adj ustable seat, means for effecting thelateral adjustment of the seat, the seat being formed of a lower section and of a vertically-adj ustable seat-section, a central rackbarattached to said seat-section and guided in t-he slot of the top part, a spindle having a pinion meshing with said rack-bar, a spring pressing on the inner end of the spindle, and a socket-plate in the lower seat-section having a square recess for engaging a squared part of the spindle and locking the saine in position, substantially as set forth.
Description
(No Model.) 2 Sheetsf-Sheet 1. P. KRABMER. PIANO STOOL. No. 429,458. Paten-ted June 3, 1890.
z sheets-'sheet 2.
(No Model.)
FQKRABMBR. PIANO STOOL.
W/ T/VE SSE S l PATENT FFICE.
'rHE T. F. KRAEMER & COMPANY, OF' SAME PLACE.
P'lANO-STOOL.
SPECIFICATION forming een ofreaevrs `rate-1ra No. 429,458,61215801 June 3,1890. A
Appleman ned May-16,1889. serial No. 311,081. (Nb model.)
T a/ZZ whom it 11i/tty concern:
Be it known that I, FELIX KRAEMER, ofthe city, county, and State of New York, a' citizen of the United States, have invented certain new and useful Improvements in'Piano- Stools, of which the following is a specification. Piano-stools with two seats, which are used by two persons for playing on the same piano-such as, forinstance, ateacher and a pu- Io pil-were used heretofore, in which the seats were supported on one-frame, both being vertically adjusted together by suitable mechanism. Neither one of the seats could be adjusted independently of the other, and the I5 child could not'be seated higher than the teacher, nor could the seats be moved sidewise on the frame, so as to give more room for the players.
The object of this invention is to furnish zo animproved double piano-stool in which-both seats can be vertically adjusted together and each seat singly, and in which the seats can be laterally moved away from or towardl each other; and the invention consists of a piano- 2 5 stool in which two laterally guided and slid-` ing seats are supported on a common frame. Each seat is independently adjustable in vertical direction by means of a central rackbar, which is engaged by a pinion on a square 3o spindle that passes through one side wall of the lower part of the seat, the inner end of the spindle being acted upon by a spring, which forces the squared portion of the spindle into a square recess of a socket-platev of 3 5 the seat-frame, so as to lock the rack-bar and seat at any suitable height.
In the accompanying drawings, Figure l represents a front elevation of my improved double piano-stool, showing the seats in their 4o normal position sidewise of each other. Fig.-
2 is a plan of the stool with the seats moved sidewise on the supporting-frame. Fig. 3 is a vertical transverse section on line m fr, Fig. l. Fig. 4 is a front elevation showing the seats moved away from each other, one of them raised above the other. Fig. 5 is a vertical section of one of the seats drawn on a larger scale, and showing the adjusting mechanism of the seat; and Fig. 6 is a horizontal 5o section on line 'y y, Fig. 5.
upper seat part proper B2. The latter is guided the top, part A of the frame A are supported two seats B B, which are guided by longitudinal dovetailed cleats b in corresponding `grooves h oi' the top part A', so as to be adjusted in lateral direction away from each other, as shown in Fig. 2. When the seats BB are thus supported, they are to be used for two persons-such as a teacher and his hpupil-onby two persons who play duets on the piano.
When only one person desires to sit on the stool, the seats are moved toward each other suntilthey abut, wheny the stool is like an ordinary piano-stool.
-' Each seat B is made of a lower part B and an I 7o 1n the lower part by a central rack-bar C,
Vwhich is rigidly attached to the bottom of the seat'Bg, and is guided in an opening in the bottom of the lower seat-frame B and in a longitudinal slot a of the top A of the supporting-frame. The rack-bar C is engaged by a pinion d, which is attached to a spindle D, that passes through a hole in the outer side wall of the lower seat-frame B', the outer end of which spindle is provided with a knob D. The ends of the spindle D are rounded to turn in suitable bearings, While the intermediate part of the spindle is made square, so as to engage a socket-plate d2, attached to the inner surface of the outer side wall ofthe seat-frame B,which socket-plateis provided Withasquare recess t0 receive the square inner part of the spindle D. The opposite end of the spindle is supported in suitable bearings @and acted upon by a strong spiral spring e2, which latter serves to keep the square part of the spindle D in the square opening of the socketplate cl2, so as to keep thereby the spindle D, rack-bar C, and the seat B2 in locked position. Vhen it is desired to raise or lower the seat, the spindle D is pushed inward against the tension of the spring e2 until the square part clears the socket-plate cl2 and permits the turning of the spindle D on its axis, so Y that the pinion d, which meshes with the rack Ioo on the rack-bar C, raises or lowers thereby the seat B2. As soon as the pressure on the knob D is released the spring e2 forces the spindle lengthwise and into re-engagement with the socket-plate (Z2, thus locking it and the seat in place. The pinion cl has to be of sufficient width to provide for the shifting of the spindle and still remain in mesh with the rackbar C. By the independent adjustment of each seat B eitherseat can be adjusted to any suitable height as required by the persons occupying the same. After use the seats are lowered by pushing the spindle inward and turning the same until the seat arrives upon the lower seat-frame B', when the entire seat is moved inwardly on the top part A until the seats abut against each other.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with a supportingframe the top part or platform of which has longitudinal guide-grooves, of two laterallysliding seats moving in said grooves and being vertically adjustable independently of each other, substantially as set forth.
2. The combination, with a supportingframe having a top part with dovetailed guidegrooves, of two laterally-sliding seats, each seat being composed of a lower section anda vertically-adjustable seat-section, substantially as set forth.
3. The combination, with a supportingframe having a top part with dovetailed guidegrooves, of laterally-slidin g seats having cleats guided in said grooves, each seat being composed of a lower section and an upper seatsection, and means for raising or lowering the seat-section, substantially as set forth.
4. The combination, with a supportingframe having a longitudinally-slotted top part, of two laterally-sliding seats guided by cleats in grooves of said top part, each section being formed of a lower section and an upper seatsection, rack-bars attached to the upper seatsections, spindles provided with pinions meshing with said rack-bars, and means for locking said spindles and rack-bars after the upper seat-sections are adjusted, substantially as set forth.
5. The combination, with a supportingframe havinga longitudinally-slotted top part, of a laterally-adj ustable seat, means for effecting thelateral adjustment of the seat, the seat being formed of a lower section and of a vertically-adj ustable seat-section, a central rackbarattached to said seat-section and guided in t-he slot of the top part, a spindle having a pinion meshing with said rack-bar, a spring pressing on the inner end of the spindle, and a socket-plate in the lower seat-section having a square recess for engaging a squared part of the spindle and locking the saine in position, substantially as set forth.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.
FELIX KRAEMER. Witnesses:
M. REIMHERR, J oHN A. STRALEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US429458A true US429458A (en) | 1890-06-03 |
Family
ID=2498367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US429458D Expired - Lifetime US429458A (en) | kraemer |
Country Status (1)
Country | Link |
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US (1) | US429458A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604955A (en) * | 1981-10-03 | 1986-08-12 | Willy Fleischer Metallwarenfabrik Gmbh & Co. | Height-adjustable table for work places with video screen |
US4911085A (en) * | 1988-05-05 | 1990-03-27 | Pencoske Edward L | Collapsible table |
US20040094076A1 (en) * | 2002-07-10 | 2004-05-20 | Ju-Young Jin | Folding table |
US20040187749A1 (en) * | 2002-09-27 | 2004-09-30 | Chen Zhurong | Folding table |
US20050005826A1 (en) * | 2002-04-09 | 2005-01-13 | Strong L. Curtis | Portable folding table with locking hinge |
US20050241550A1 (en) * | 2004-04-22 | 2005-11-03 | Martin Neunzert | Retainer for securing a table in a folded position |
US20050241552A1 (en) * | 2003-04-08 | 2005-11-03 | Martin Neunzert | Handle for a portable table |
US20060288918A1 (en) * | 2002-04-09 | 2006-12-28 | Strong L C | Portable folding table |
US8091490B2 (en) | 2007-02-22 | 2012-01-10 | Lifetime Products, Inc. | Handle for a portable table |
-
0
- US US429458D patent/US429458A/en not_active Expired - Lifetime
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604955A (en) * | 1981-10-03 | 1986-08-12 | Willy Fleischer Metallwarenfabrik Gmbh & Co. | Height-adjustable table for work places with video screen |
US4911085A (en) * | 1988-05-05 | 1990-03-27 | Pencoske Edward L | Collapsible table |
US7640870B2 (en) | 2002-04-09 | 2010-01-05 | Lifetime Products, Inc. | Portable folding table with locking hinge |
US20060288918A1 (en) * | 2002-04-09 | 2006-12-28 | Strong L C | Portable folding table |
US20050005826A1 (en) * | 2002-04-09 | 2005-01-13 | Strong L. Curtis | Portable folding table with locking hinge |
US7475644B2 (en) | 2002-04-09 | 2009-01-13 | Lifetime Products, Inc. | Portable folding table |
US20040094076A1 (en) * | 2002-07-10 | 2004-05-20 | Ju-Young Jin | Folding table |
US7475641B2 (en) | 2002-07-10 | 2009-01-13 | Lifetime Products, Inc. | Folding table |
US7278361B2 (en) | 2002-09-27 | 2007-10-09 | Lifetime Products, Inc. | Folding table |
US20040187749A1 (en) * | 2002-09-27 | 2004-09-30 | Chen Zhurong | Folding table |
US20050241552A1 (en) * | 2003-04-08 | 2005-11-03 | Martin Neunzert | Handle for a portable table |
US7735431B2 (en) | 2003-04-08 | 2010-06-15 | Lifetime Products, Inc. | Handle for a portable table |
US20100242809A1 (en) * | 2003-04-08 | 2010-09-30 | Martin Neunzert | Handle for a portable table |
US8156875B2 (en) | 2003-04-08 | 2012-04-17 | Lifetime Products, Inc. | Handle for a portable table |
US20050241550A1 (en) * | 2004-04-22 | 2005-11-03 | Martin Neunzert | Retainer for securing a table in a folded position |
US7634969B2 (en) | 2004-04-22 | 2009-12-22 | Lifetime Products, Inc. | Retainer for securing a table in a folded position |
US8091490B2 (en) | 2007-02-22 | 2012-01-10 | Lifetime Products, Inc. | Handle for a portable table |
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