US120682A - Improvement in bell-pulls - Google Patents
Improvement in bell-pulls Download PDFInfo
- Publication number
- US120682A US120682A US120682DA US120682A US 120682 A US120682 A US 120682A US 120682D A US120682D A US 120682DA US 120682 A US120682 A US 120682A
- Authority
- US
- United States
- Prior art keywords
- bell
- pulls
- pull
- improvement
- lever
- 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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- 240000002799 Prunus avium Species 0.000 description 4
- 235000019693 cherries Nutrition 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K3/00—Rattles or like noise-producing devices, e.g. door-knockers
Definitions
- Figure l represents a side view of my improved bell-pull.
- Fig. 2 is a transverse section of the same on the line c o, Fig. l.
- This invention relates to a new arrangement of levers constituting a bell-pull; and has for its object, by the improved combination to insure reliable action under a short motion of the pull.
- a in the drawing represents the knob, and B the pulling-rod of the bell-pull.
- the inner end oi' the rod B is, by a pivot, a, connected with the converging ends of two short levers, b and d.
- rEhe lower end of b is at e pivoted to the frame or easing C of the door.
- the lower end of the lever dis, by a pin, f, connected with a lever, D.
- This lever D is at g pivoted to the casing G, and extends inward, its inner end being connected with the wire h that leads to the bell, and thereby also with the ordinary spring on the bell, shown in the drawing as spring i, the tendency of the said spring being to hold the free end of D elevated.
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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Description
A. L. SWAN. Improvement in Bell Pulls.
HqpNgol."120,682.
PATENT EEIGEc AMos L. sWAN, 0E CHERRY VALLEY, NEW YORK.
IMPRQVEMENT IN BELL-PULLS.
Specification forming part of Letters Patent No. 120,682, dated November 7, 1871.
To all whom @t may concern:
Be it known that I, AMos L. SWAN, of Cherry Valley, in the county of Otsego and State of New York, have invented a new and useful Improved Bell-Pull; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.
Figure l represents a side view of my improved bell-pull. Fig. 2 is a transverse section of the same on the line c o, Fig. l.
Similar letters of reference indi cate corresponding parts.
This invention relates to a new arrangement of levers constituting a bell-pull; and has for its object, by the improved combination to insure reliable action under a short motion of the pull.
A in the drawing represents the knob, and B the pulling-rod of the bell-pull. The inner end oi' the rod B is, by a pivot, a, connected with the converging ends of two short levers, b and d. rEhe lower end of b is at e pivoted to the frame or easing C of the door. The lower end of the lever dis, by a pin, f, connected with a lever, D. This lever D is at g pivoted to the casing G, and extends inward, its inner end being connected with the wire h that leads to the bell, and thereby also with the ordinary spring on the bell, shown in the drawing as spring i, the tendency of the said spring being to hold the free end of D elevated.
By pulling on the knob A the levers b and d will be swung so as to bring d into a more vertical position, thereby carrying the lever .D down and causing it to. pull on the wire that leads to the bell. A short motion of the knob will suice to produce a complete swing of the lever D, and insure the desired disturbance of bell or stroke of clapper. On being let go the knob will, by the power of the spring i, be drawn in again and all parts brought back to their normal position. The rod B can thus not be retained half-way in or out, but will always be ready for full action.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The bell-pull mechanism, consisting of the rod B, levers b, d, and D, and spring all arranged to operate substantially as herein shown and de' scribed.
AMOS L. SWAN.
NORMAN C. WrLLsoN. (24)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US120682A true US120682A (en) | 1871-11-07 |
Family
ID=2190126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US120682D Expired - Lifetime US120682A (en) | Improvement in bell-pulls |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US120682A (en) |
-
0
- US US120682D patent/US120682A/en not_active Expired - Lifetime
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