Otis King Cylindrical slide rule

Otis King Cylindrical slide rule

Date of Manufacture: 1960
Quantity Available: 1
Physical Condition: Good
Original Box: No

The Otis-King rule uses concentric telescoping metal cylinders with a continuous long spiral logarithmic scale. Calculations are done by sliding and rotating the cylinders relative to each other. The purpose of using a cylinder design slide rule is to increase the length of the scales, thereby improving the accuracy, relative to the linear type.

Hire Charges

Hire Charges

We currently do not have our charges listed online, but we are happy to quote you by phone. Please call us on 01440 709794 and we'll be happy to help.

Minimum Order Charge

We do have a minimum order charge of £50 (excluding delivery) for all hires. This is to cover the time involved in organising and dispatching a single small item. Sorry :-(


New clients are required to pay in advance by BACS or credit card. Repeat customers can open a credit account with us on 30 days terms.

Multiple Items & Job Lots

If you're looking to fit out an entire set and need many items, we are happy to quote a discounted rate based on the quantity of items.

Dry Hire

The term dry hire means to hire an item without having a technician supplied to support it. Most of our small items are available to dry hire, but some of the more complicated equipment that require specialist knowledge are not. In these cases we will deliver the item(s) personally and set them up for you. Please call us for a quotation based on the hire period and location.

Otis King Cylindrical slide rule Prop For Hire