1. A cricket bowling machine which is characterized by:
- A shaft 18;
- A shaft support 70 connected to the shaft;
- A wheel 16 rotating on the shaft, the wheel having an outer perimeter;
- A cylindrical tube 12 for receiving the ball; having a slot parallel to the tube wherein a portion of the outer perimeter is located in the slot of the tube;
- A ring-sleeve 40 for rotating the wheel around the cylindrical tube and setting the wheel at any selected angle between 0 and 360 degrees around the tube.
2. The cricket bowling machine of claim 1 further includes an adjustable rod for increment and decrement of the angle of the cylindrical tube.
3. The cricket bowling machine of claim 1 where the means for rotating the wheel on the shaft is provided
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The main objective of this invention is to provide an automated cricket bowling machine for the application of wide range of potential customer such as high school player, public league tournament, minor or major leagues competition; which can be sold at a sufficiently low price to reach the specific targeted market. This invention also provides a simple design structure for its mechanic which will significantly reduce the production cost compared to other similar machines on the market right now, with that while maintaining the performance of the throwing machine suitable for an amateur practice …show more content…
Cricket is mainly represented by batsmen and bowlers. For batsmen, honing the batting skill requires a lot of practice hours in the field. Bowlers are required to help batsmen during any batting practice. The problem arise when such condition where single bowler is not sufficient since repetitive act of ball throwing can injure a bowler's arm; therefore, several bowlers are needed to assist a batsman while in field practice. Also, for a human bowler it is hard to maintain the same ball trajectory especially when a batsman wants to practice a specific shot continuously. Such problem lead to the invention of a machine that can substitute the role of human
For years it was thought that the golf swing was a solid piece of movement without any differentiating variables. Vast expansion in technology over the last 20 years has produced more information on the biomechanics of the golf swing. “ Golf Biomechanics applies the principles and technique of golf mechanics to the structure and function of the golfer in an effort to improve the golf technique and performance” (Hume P., Keogh J., and Reid D. 2005) Biomechanics, “The scientific discipline that applies mechanical principles and to understanding movement.” (Hume P., Keogh J., and Reid D. 2005) allows scientists to observe a golfer’s swing to near milliseconds to the point of impact. This is much more precise to previous measurements used such as video recordings, outlines, etc. Understanding how the swing works by breaking down the movements within the swing through visual aids emphasize the opportunity for a better swing and in turn, better golf. Studies of biomechanics within the golf swing have shown the sequential separation from torso to pelvis, disproving the original theory of a solid swing with continuous motion known as the X-factor. Before understanding how the biomechanics of the golf swing works with the X-factor, the basics of the swing must be established.
Judge, K.A., and Bonanno, V.L. 2008. Male weaponry in a fighting cricket. PLoS ONE 3:e3980.
To many, baseball is known as America’s pastime. They find it enjoyable to watch two teams strategize against each other in order to win each individual game. Many factors combine together to affect the outcome of the game. Usually the team with the most quality hits, fewest errors, and best pitching wins. One of the most important of these factors is decent pitching. If the pitcher is struggling it’s easier for the other team to get on base and score.
It is a sporting equipment and as such we can easily connect it with fun and competition, it also has holes drilled for the fingers, which leads to a better grip, more control. On the other hand, it is heavy, thus it is something that wants to get away from you, it is hard to hold control of it, it needs those holes drilled if we want to somewhat control it.
- The plumb bob was used to locate the centre of the trip plate , to
This assignment has taught me a lot about the Native Medicine Wheel, I did not know how many different means it could have but to everyone it is different.
When one throws a baseball properly they are using there entire body to generate a large force to propel the baseball. A general throwing position starts with a person rotated 90 degrees from there target with there throwing arm 180 degrees from the target and parallel to the ground. The person then starts rotating their body back towards their target while there throwing arm starts bending until it is almost 90 degrees to their elbow, while the arm is bending at the elbow the throwing arm is rotating such that the arm rotates back almost 180 degrees from the target. Meanwhile the person is leaping forward with the leg that was initially pointed at the target while there other leg is planted into the ground. The person is bending at their waist and the other arm is rotating into their body. Around the point where the driving leg strikes the ground the throwing arm is rotating foreword at a tremendous angular speed and the person lets go of the ball. At the point where the ball is let go the persons body pulls the planted leg forward and the throwing arm finishes its motion towards the driving leg.
The sport of softball has been played since the 1800’s, when it was first invented by George Hancock. As the game developed through the years, it became evident to not only the players, but the spectators as well, that mathematics was a crucial aspect of the beloved sport. As a softball player for many years, one begins to see the connections between the two very clearly. When investigating the degree of importance math has on the sport of softball, one can see that mathematics plays an important role in every part of the game. Mathematics is used in statistics of the game, reaction time, batting average, and on base statistics. However, what most people, even players, do not realize about mathematics in softball, is that it also applies to something as simple as throwing the ball to its destination.
(http://www.grc.nasa.gov/WWW/k-12/airplane/ballforce.html Horney, A., Lowry, T., Schwenker, E., & wray, E. (2008). A New spin on baseball. Electronic Proceedings of Undergraduate Mathematics, 3(4)).
"Understanding the Mechanics of Throwing a Baseball May Help Protect the Shoulder and Elbow ." Baseball Pitching. Web. 30 Apr. 2014. .
The type of data that will be collected throughout this paper will be from Major League baseball from over the past years. There are various types of data for each part of the game, such as hitting and pitching statistics. Applied to that data will be the mathematical formulas and calculations that will help get us the end statistics that are so important to the game and they will show overall how math is an influential part of the game.
...the knuckle ball will go the direction of least resistance. This makes the pitch very unpredictable and hard to control.
The basic trimmer works by the engine driving a multi-bearing supported hardened steel shaft housed in an aluminium tube through a centrifugal clutch this shaft is connected to a “head” that holds a nylon line that spun at high revolutions per minute (RPM). This nylon line then cuts the grass by hitting the blades of grass at high speed, this cause the grass to be severed at the point of impact. Thus trimming the grass.
A label was put on the curved surface of the flywheel. The mass was winded up again. 7. The height h of the mass was measured. The height h was recorded.
The nail clipper has two main parts that are bolted together and provide the necessary leverage to trim the nail. Attached to the base of the nail clipper is a file that is connected by a circular shaft that allows you to rotate the file 360 degrees about the shaft. A bolt to the base connects the second part that provides leverage and this rotates about the bolt to either a position that is parallel to the main part or at a point that is 43 degrees at an angle to the main part (Figure 1).