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COLLECTIBLE & USEABLE!!!

M. H. MEAR & Company Ltd.

PIPE FLOW CALCULATOR FOR LIQUIDS & GASES

MODEL 3

Custom Slip/Pocket Case

"Huddersfield, England"

This extremely fine vintage M. H. MEAR & Company Ltd. PIPE FLOW CALCULATOR OR LIQUIDS & GASES MODEL 3, comes in its custom maroon-colored pleather pouch/holder accommodating the Pipe Flow Calculator instructions and protecting this intricate circular slide-rule calculator while keeping it clean and ready for its next use.

This calculator is designed to solve quickly and accurately the rational formula for the turbulent flow of fluids through pipes. To create an opportunity for even greater productivity, this circular calculator/slide rule comes with a multitude of flow-related scales on the both sides. Working through its multiple scales, results involving Gas Flow, Viscosity, and Turbulent Or Streamline Flow can be calculated savings an enormous length of time and allowing engineered solutions. In addition, the orange instructions booklet can guide the user in the critical importance of “Allowance For Bends And Elbows” along with “Allowance For Corrosion And Age Of Pipe”. This circular slide-rule calculator is designed with two disks one on top of the other that worked together can produce the desired results.

There are no signs of extreme use, personal identification, or pencil/ink marks on the surface. Figures and the extremely sharp and thin divisions as engraved into the plastic to enable easy and accurate reading of the measurement factors.

Produced by M. H. Mear & Company Ltd., the Calculator Designers, is a unique designer and planner tool that is both unusual and invaluable for this subject matter.

NOTE ON CONDITION

eBay bidders who may be interested in this this M. H. Mear & Company Ltd. Pipe Flow Calculator For Liquids & Gases Model No. 3 should be aware that this circular slide-rule calculator rule is in excellent condition that might account for its limited, if not at all, use. This tool comes with its crisp, legible graphics and smooth rotating discs.

The custom maroon-color vinyl (pleather) snap-button closure holder has done its good deed by keeping this sophisticated mathematical tool in extra fine condition. There is no indication about the past owner(s) other than the tool was fully and properly maintained and kept in a clean state.

Please note that the overall existing fine and operable condition were considered in making appropriate value adjustments in setting the minimum bid amount for this auction.

eBay bidders are encouraged to fully examine all pictures and review this input before making any decision to participate in this auction.

BACKGROUND. M. H. Mear and Co. was founded by Norman Mear in 1947, when he first produced a Gas Flow Calculator which made calculations relating to the flow of gases in cast iron and steel pipes.

As would be judged from our research for authenticity, close review, and evidenced by examination of fine tools using the multiple pictures provided in this listing and using the valuation guides*, this vintage M. H. MEAR & Company Ltd. PIPE FLOW CALCULATOR OR LIQUIDS & GASES MODEL 3 might be graded with the FINE++ rating in accordance with the criteria:

FINE: Tool is completely useable; metal is 90-100% and may have a trace of rust and some dark patina; wood 80% original or old finish, smooth surface and edges slightly rounded; minimal wear and no repair; maker’s marks, if present, are clear and easily legible.

NOTE: Grading is an art and not an exact science thereby creating the need for sound judgment. To address the wide scope of possibility, most grading guides are purposely vague and somewhat subjective in nature. Grading combines personal opinion, subject matter research, past experience, and knowledge to allow each individual a distinct perspective in assessing reasonable or acceptable condition. Value determination comes with the rarity, customization, existing item condition as derived from review of available pictures, questions to the seller, and study of pertinent reference materials. Multiple pictures taken at different angles and available lighting may offer the only possible visual overview of specific features along with the revelation of both the highlights and failings to support a sound decision whether to participate in this online auction.

* REFERENCES & ACKNOWLEDGEMENTS: SLIDE RULES, Their History, Models, and Makers, by Peter M. Hopp., The Slide Rule, by Lee H. Johnson, Slide Rules: A Journey through Three Centuries, by Dieter von Jezierski, Beginner's Guide To Collecting Slide Rules, presented by The Oughtred Society and the United Kingdom Slide Rule Circle and various Internet websites.

Most of the dimensions/features/details/markings of this circular slide-rule calculator tool are mentioned or shown in the pictures provided. The total shipping weight of this M. H. MEAR & Company Ltd. PIPE FLOW CALCULATOR OR LIQUIDS & GASES MODEL 3, its custom vinyl storage holder, together with protective packing materials will be approximately 10 ounces. The United States Postal System (USPS) postage rate guidelines regarding the size, weight, dimensions, location of recipient and value; suggest that this parcel to be shipped to the eBay registered mailing address of the winning bidder using USPS Ground Advantage^TM Service Postage.

Please note that an invoice showing the total payment breakdown for the (1) winning auction bid, and (2) State Tax, if applicable, will be sent after the auction.

For the eBay Auction bidding winner located outside the United States (US), the automated payment software will generate a US CUSTOMS DECLARATION FORM (CN22) containing the eBay registered mailing address that will be used as the shipping label placed onto the envelope/packet/package.

No Reserve. Low Minimum. Priced To Sell.

Terms And Conditions

1.This auction item is being auctioned "as is" with the East Coast Bits (ECB) description, condition, suggested evaluation/opinion along with the pictures as shown. Information presented in the listing description comes from combining ECB knowledge and expertise, consignor input, references, conferences with subject matter experts, and in-house research using available written material, and unrestricted accessible graphic and text information made available through the Internet. Often available written and online references are mentioned to provide the eBay bidder an opportunity, as desired, to review more information about the auction item. To comply with eBay policy concerning the prevention of possible malicious intent, no display of secure hypertext transfer protocol (HTTPS) links will be placed into the listing.

2. ECB attempts to provide multiple photographs using different angles and directional lighting together with adequate descriptive text to assist the eBay bidder in making an informative decision before involvement. While this effort to describe all features/aspects is done in due diligence, it is rare but always possible that some flaw or fault might be missed in the initial assessment and description of this auction item. Note that some pictures may be numbered or identified to bring attention to some feature/detail or functional aspect of the auction item. Pictures of objects taken through plastic or glass can be difficult with reflected rays of light that may detract from the true coloring or cause the surface of an object to reflect the light source(s) or display aspects of the plastic/glass surface. ECB strongly encourages eBay bidders to review all the pictures and the auction item description to help create a satisfactory auction transaction. Questions about a description and/or specific picture(s) are always welcome.

3. For a used auction item, wear and tear aspects that are described in the text and are displayed in the attached photos were the primary factors used by ECB to classify this item condition as pre-owned or used. The overall existing condition was then fully considered by ECB in making appropriate value adjustments in setting the minimum bid for this auction.

4. Satisfaction guaranteed. Full refund privilege minus postage and insurance costs are possible if this auction item is returned within 30 days of receipt using the same manner of delivery, postage, and insurance as applicable. To help expedite this auction item return process, an explanatory email message to ECB for the requested return would be appreciated. This auction item along with any related original box/packaging will be expected to be in the same condition as sent.

5. To help in making an informed decision about involvement, potential eBay bidders are encouraged to ask any questions about the description, references, pictures, postage, shipping arrangements, prior to bidding. Note that while ECB monitors all of its eBay listings to know whether a question has been received about an auction item in order to provide a full answer to all questions if possible, ECB may not be able to respond to all questions that are received just prior to the auction closing.

6. eBay bidders are kindly encouraged not to bid if there is any cause for doubt, answers to questions have not been received or do not answer the question raised, or if there is a bidder refusal to accept any of the terms and conditions that are presented herein. In addition, eBay bidders are requested not to bid if there are not any financial means to pay for this auction item, postage, other postal services, and any associated insurance. As may become necessary, non-payment issues will be addressed using the established eBay Problem Resolution process.

7. The shipment of this auction item to any location outside the United States will require the preparation of a US Customs Declaration label on the envelope/packet/package. With the use of online postage labels, the eBay program software will display the listing information on the label including the description of the auction item, weight, and the value as indicated by the winning bid amount. ECB is committed to abide by all stipulated U.S. International Regulations For Mailing. Any/all requests by the winning eBay bidder for any deviation from these published regulations and/or restrictions will be denied.

8. A payment using eBay service for the total auction transaction costs is desired. Winning eBay bidders should contact ECB prior to the auction closing to allow any consideration for acceptance of any other form of payment. Failure to make this contact will be the winning eBay bidder confirmation of acceptance to use eBay for payment. ECB is controlled and will abide by the operational and financial aspects (as the Seller) as established by eBay. Per eBay guidance, the winning eBay bidder will be required to directly interact with eBay on questions regard any of the financial aspects (as the Buyer) of this transaction.

9. The winning eBay bidder is requested to review the accuracy of the current mailing address as registered in eBay. Unless a different mailing address is identified and specified by the winning eBay bidder via an email message to ECB prior to shipment, the mailing address registered in eBay will be used. ECB may send an email message through eBay for an English translation of a registered foreign address to help assure the correct processing of mail distribution and delivery.

10. ECB will make every attempt to ship this auction item on the next business day after eBay payment. If this shipment cannot be accomplished within this target 1-day schedule for whatever reason, ECB will notify the winning eBay bidder of the delay and provide some input as known about on the expected date of shipment. Note that delays are infrequent but can occasionally occur in acquiring appropriate and sufficient packing materials to provide suitable and adequate protection for the auction item during transportation and delivery.

11. Payment through eBay must fully clear before an auction item is sent in a secure manner using protective materials to help safeguard against if from any accidental damage during transportation and delivery.

12. ECB will attempt to investigate and provide full and informative email communications about the shipping and delivery status of this transaction after the auction closing if not indicated through the automatic progress updates posted onto the eBay auction transaction. ECB cannot track the delivery progress status outside the US.

13. ECB may send a message through eBay to determine the reason for the lack of payment or communications with the eBay bidder within seven (7) days after the end of the auction. In addition, ECB may take action to coordinate with eBay to assist in the resolution of a non-payment matter.

14. ECB will strive to make this bidding/buying experience to be both pleasant and acceptable in order to earn the satisfaction and the possible eBay bidder positive input to the ECB eBay profile. ECB will be very pleased to provide positive input to the winning eBay bidder profile as well.