Engineering in Kenya

History of Mechanical Lifts

Posted by on Feb 22, 2018 in Mechanical Engineering | 0 comments

Mechanical Lifts are products that assist in moving of items and people upwards. Large scale mechanical lifts are permanently fixed in a building. The lifts allow movement of individuals and equipments through the push of a button thus eliminating the hassle for traversing the stairs or the ramps. A mechanical lift is sometimes referred to as an elevator. It is a machine involved in transporting people from one floor to another. The first elevator was found was described by Vitruvius, a Greek writer who described a contraption built by Archimedes. These early elevators were operated manually by animals or by man. In the 17th century, a mechanical lift was developed and was powered by hydraulics. Engineering in Kenya has more articles.

Mechanical Lifts History of Mechanical Lifts

Mechanical Lifts

Types of Mechanical Lifts

 Mechanical lifts are also useful in nursing and personal care. Especially for persons who have been barred from lifting heavy objects due to physical disabilities or other illness. There are other special lifts that are available; these include toilet lifts which are available to assist people with disability. These individuals thus require less assistance from the care provider. Lifts are also used by people who work from one floor to another and are meant to minimize physical effort and also reduces the chances of the personal injury especially during the patient’s care.

Other types of lifts are Traction mechanical lifts. These lifts are powered by motors.  The motors use the rolling steel hoists over a drive sheath that hoists the cables. The gear box attached by a high motor is used. The lifts powers by gearless motors, the drive sheath are directly attached to the motor. Hydraulic elevators use controlled hydraulic and fluid power to raise or lower the lifts. These mechanical lifts are meant for medium and low rise buildings. In these lifts the plunger presses down to generate power which moves up the elevator. The lifts descent is controlled via gradual release of the hydraulic pressure. These types of elevators have a smoother trip up and down. However, physical constraints have made these types of mechanical lifts impractical for high-rise buildings.

Factor that are considered in the construction Mechanical Lifts

Lifts are of varying sizes and ranging which suit varying needs and are mostly found on a multi storey and fixed during construction. However, they can be added to buildings after construction if required. During this time professional advice must be sought regarding the suitability for the building. These include local government’s approval and compliance with their standards. Elevators   range of models to fit the individual’s requirements. For example, mechanical lifts for commercial purposes will have different specification than that of non residential purpose. The space available within the premises will also determine the type of elevator to be used. Other determinants include lifting capacity and the height and width requirements within the lifts.

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Factor that are considered in the construction Mechanical Lifts

The type of door arrangements required is also another determinant; whether it is a swing or sliding door. Other requirements are the capacity of the building, where it requires an internal mechanical lift or extended external to the building. How to get the materials is important to be considered; whether the materials are to be obtained individually and then assembled on site and other installation processes that will be involved. Other determining factors are the number of floors the lift needs to travel, emergency operations in case of power failure, emergency stop buttons, powers and other requirements like power consumption. And thus the History of Mechanical Lifts

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