SU55836A1 - Method for determining flexibility (stiffness) of bow reeds - Google Patents
Method for determining flexibility (stiffness) of bow reedsInfo
- Publication number
- SU55836A1 SU55836A1 SU200A SU200A SU55836A1 SU 55836 A1 SU55836 A1 SU 55836A1 SU 200 A SU200 A SU 200A SU 200 A SU200 A SU 200A SU 55836 A1 SU55836 A1 SU 55836A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stiffness
- bow
- dynamometer
- reeds
- flexibility
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Stringed Musical Instruments (AREA)
Description
Предлагаемый способ определени гибкости (жесткости) тростей смычков (скрипичных, альтовых, виолончельных и контрабасовых) состоит в том, что на трость вместо волоса нат гивают гибкое тело с динамометром, и полученное усилие сравнивают с усилием, известным но эталонной трости, при одинаковых стрелах прогиба тростей.The proposed method for determining the flexibility (stiffness) of bows (violin, alto, cello and double bass) is made by applying a flexible body with a dynamometer to a cane instead of a hair, and the force obtained is compared with an effort known but a reference cane with identical deflection arrows reeds.
На чертеже фиг. 1 иллюстрирует предлагаемый способ, а фиг. 2 показывает продольное сечение динамометра.In FIG. 1 illustrates the proposed method, and FIG. 2 shows a longitudinal section of a dynamometer.
На головку трости смычка 1 надевают серьгу 2, соединенную с гибким телом, например, стальной лентои 5.On the head of the cane of the bow 1 put on the earring 2, connected with a flexible body, for example, steel tape 5.
Другой конец гибкого тела соединен также прИ помощи серьги; 4 с поршеньком 5 динамометра. Динамометр состоит из неподвижной колодки 7, укрепл емой на конце трости при помощи стопора 10 и подвижной колодки 6, в которой находитс поршенек 5 с указателем 5 и с пружиной 11.The other end of the flexible body is also connected with the aid of the earrings; 4 with a piston 5 dynamometers. The dynamometer consists of a fixed block 7, fixed at the end of the cane with the help of a stopper 10 and a movable block 6, in which there is a piston 5 with a pointer 5 and with a spring 11.
Подвижна колодка 6 прлучает возможность перемещатьс при помощи гайки 18, укрепленной на теле колодки и винта 9, приводимого во вращение от руки.The movable shoe 6 makes it possible to move with the help of a nut 18 fixed on the body of the shoe and screw 9, which is rotated by hand.
На наружной стенке колодки 6 динамометра имеетс шкала с ценой делени , выраженной в килограммах или в дол х его.On the outer wall of the 6 dynamometer pad there is a scale with the price of division, expressed in kilograms or in its proportions.
Предлагаемый способ заключаетс в следующем. Берут смычок, который желают считать эталонным, устанавливают на нем описанное выше устройство и нат гивают винтом 9 гибкое тело 3 до достижени определ емой на глаз какой-то стрелы прогиба в точке, равной половине длины гибкого тела (см. Л/ на фиг. 1).The proposed method is as follows. The bow is taken, which is desired to be considered a reference, the device described above is mounted on it and the flexible body 3 is tightened with a screw 9 until a certain deflection of an arrow defined by the eye is reached at a point equal to half the length of the flexible body (see L / in Fig. 1 ).
Стрелу прогиба трости в точке Л/2 замер ют и, принима ее за эталонную , выполн ют по ней щуп.The arrow of the cane deflection at the point L / 2 is measured and, taking it as a reference, is performed on it by the probe.
Одновременно с определением стрелы прогиба замечают показание динамометра , которое также принимают за эталонное.Simultaneously with the determination of the deflection of the arrow, a dynamometer is noted, which is also taken as a reference.
В дальнейшем при испытании любого смычка поступают следующим образом . Установив гибкое тело и динамометр , нат гивают первое при помощи винта 9 до достижени стрелы прогиба трости, равной установленной щупом, после чего читают показани на шкале динамометра.Further, when testing any bow, proceed as follows. Having installed a flexible body and a dynamometer, tighten the first one with the help of screw 9 until the cane deflects the stick equal to the probe installed, then read the readings on the scale of the dynamometer.
Если полученна погрузка оказалась ниже эталонной, то гибкость смычка больше, нежели эталонна и наоборот.If the resulting loading was lower than the reference, then the bow's flexibility is greater than the reference and vice versa.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU200A SU55836A1 (en) | 1937-02-15 | 1937-02-15 | Method for determining flexibility (stiffness) of bow reeds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU200A SU55836A1 (en) | 1937-02-15 | 1937-02-15 | Method for determining flexibility (stiffness) of bow reeds |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU77581A Addition SU828A1 (en) | 1923-11-15 | 1923-11-15 | M flax machine |
SU2776A Addition SU5317A1 (en) | 1925-05-14 | M flax machine for treating bast plants | |
SU3900A Addition SU65472A1 (en) | 1943-05-17 | 1943-05-17 | The method of obtaining the air-mechanical foam to extinguish the fire |
Publications (1)
Publication Number | Publication Date |
---|---|
SU55836A1 true SU55836A1 (en) | 1938-11-30 |
Family
ID=52746736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU200A SU55836A1 (en) | 1937-02-15 | 1937-02-15 | Method for determining flexibility (stiffness) of bow reeds |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU55836A1 (en) |
-
1937
- 1937-02-15 SU SU200A patent/SU55836A1/en active
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