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3,099
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1,462
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567
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494
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422
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414
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315
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Deflection Equations for Various Loading of Circular-Arc Curved Beams
In analyzing stresses, deflections, and forces in piping and certain structural systems, it is useful to have a set of equations giving the deflections at any point of a curved beam in terms of the various loads acting on the beam. This technical report presents the deflection equations for a curved circular-arc beam of variable length. The cases treated include in-plane and out-of-plane bending due to forces and moments applied to the end of the beam in three principal directions, and uniformly distributed loads applied along the beam in these three directions. Deflections were calculated by the strain energy method using Castigliano's theorem.
Date:
April 22, 1957
Creator:
Platus, D. L. & Greenstreet, B. L.
Object Type:
Report
System:
The UNT Digital Library
Cotton-Picking Shade.
Patent for a cotton-picking shade that will furnish a portable shade or shield for the use of cotton-pickers to protect them from the direct rays of the sun while at work.
Date:
July 22, 1879
Creator:
Benthall, John C.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Stalk Cutter and Puller.
Patent for a new and improved cotton-stalk cutter and puller. This design "is to facilitate the removal of cotton-stalks from land in preparing it for subsequent cultivation" (lines 17-19).
Date:
November 22, 1881
Creator:
Richardson, William B.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Picking Sack and Holder
Patent for a cotton picking sack and holder. This invention is designed to be worn by the worker.
Date:
February 22, 1910
Creator:
Montgomery, Robert B.
Object Type:
Patent
System:
The Portal to Texas History
Cultivator Hopple
Patent for a cultivator hopple. This invention is for setting the plows of cultivators at suitable distances apart. Illustration included.
Date:
January 22, 1907
Creator:
Reeves, William H.
Object Type:
Patent
System:
The Portal to Texas History
Agricultural Implement
Patent for an agricultural implement. This invention is a "novel construction of standard and plow-point, cultivator shovel, rake-tooth, or like implement" (lines 11-14). Illustrations included.
Date:
November 22, 1904
Creator:
Herrod, Howard H., Jr.
Object Type:
Patent
System:
The Portal to Texas History
Air Blast Apparatus for Cotton Gins
Patent for an air blast apparatus used for cleaning cotton gins. Illustration included.
Date:
November 22, 1910
Creator:
McDonald, Osmon W.
Object Type:
Patent
System:
The Portal to Texas History
Cultivator
Patent for a cultivator designed to "regulate the pitch at which the sweep blades enter the ground" (lines 13-15). Illustrations included.
Date:
March 22, 1910
Creator:
Hewitt, John Henry
Object Type:
Patent
System:
The Portal to Texas History
Cultivator
Patent for new and useful improvements in cultivators, relating to an attachment which may be applied to use upon any variety of cultivator with carrying-wheels, which provides efficient means for cutting cotton-stalks or weeds after cotton harvest.
Date:
January 22, 1901
Creator:
Kerr, Robert Lee
Object Type:
Patent
System:
The Portal to Texas History
Cultivator.
Patent for an improvements in cultivators, including instructions and illustrations.
Date:
November 22, 1898
Creator:
Stevenson, William M.
Object Type:
Patent
System:
The Portal to Texas History
Cultivator
Patent for a cultivator. Illustrations included.
Date:
November 22, 1910
Creator:
Ellett, Luther S.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Press.
Patent for a new and improved cotton press. This design "consists of a horizontal press with reciprocating follower, worked by power, the press being arranged to receive the cotton from a chute descending from the floor above the press, the said press and the driving mechanism being constructed and arranged . . . specifically" (lines 7-13).
Date:
January 22, 1884
Creator:
Allen, John Chapman
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Press.
Patent for a cotton-press that makes "tightly wound bales from the cotton bats formed upon the condenser, and fed into the press" (lines 13-15).
Date:
January 22, 1895
Creator:
Banister, Charles
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Press.
Patent for a cotton-press that does not allow the cotton to rebound after the plunger compresses it because of teeth in the box. When the operator wishes to remove the cotton, the teeth automatically disengage in order for the cotton to be removed easily.
Date:
January 22, 1895
Creator:
Banister, Charles & Hollingsworth, Joseph
Object Type:
Patent
System:
The Portal to Texas History
Culvert.
Patent for metal road culvert improvements. Light weight, but sturdy, interlocking metal sheets are used. They can be stacked for cheaper and easier shipping. The culvert allows large amounts of water to flow through.
Date:
April 22, 1913
Creator:
Youngblood, David Franklin
Object Type:
Patent
System:
The Portal to Texas History
Summary of Corrosion Data for HRT Mockup Operational Period Ending November 5, 1956
The operation of the HRT mockup was on 0.042m UO2SO4, 0.024m H2SO4, and 0.005m CuSO4 at 280 C and 1400 psi pressure. with the O2 content at near 500 ppm. The pump showed bearing wear and high corrosion. The letdown heat exchanger was removed from the mockup and sectioned. The metallographic examination revealed corrosion. Results of corrosion runs on Ti, zircaloy-2, and stainless steel are given.
Date:
May 22, 1957
Creator:
Wacker, R. E. & Griess, J. C.
Object Type:
Report
System:
The UNT Digital Library
In-Reactor Autoclave Corrosion Studies : LITR I. Outline of Methods and Procedures
During the development of in-reactor corrosion experiments three types of bomb designs have been developed for following quantitatively the consumption of oxygen in a bomb which is fabricated from the particular metal under test. The bombs are designed so as to be rocked continuously during their in-reactor exposure, consequently agitating the uranium salt solution contained in the bomb and permitting gentle movement of the solution past metal specimens and other corroding surfaces. The oxygen pressure is produced within the bomb at the beginning of the run either by the withdrawal of gas from an oxygen tank or by the decomposition of hydrogen peroxide added just prior to closure. Temperature measurements are obtained by mans of thermocouples placed in a well within the bomb body or, in the latest design, there will also be thermocouples staked at several points on the outer wall of the bomb. The assembly is inserted in an experimental access hole in the reactor, brought up to a predetermined operating temperature by means of an electric furnace in close contact with the bomb, and allowed to remain for the desired amount of exposure to reactor radiation. Periodic measurements of temperature and pressure are made and the bomb …
Date:
May 22, 1957
Creator:
Warren, K. S. & Davis, R. J.
Object Type:
Report
System:
The UNT Digital Library
Attachment for Plows.
Patent for an attachment for plows, which "may be utilized as a cutter or the plow converted into a double-shovel plow," (lines 18-19) with instructions and illustrations.
Date:
April 15, 1891
Creator:
Williams, George M. D.
Object Type:
Patent
System:
The Portal to Texas History
Baling-Press
Patent for an improved bailing-press.
Date:
April 22, 1902
Creator:
Atkinson, Joseph J.
Object Type:
Patent
System:
The Portal to Texas History
Baling Press.
Patent for several improvements in baling presses for making cylindrical bales, the machine being able to be set up in both the horizontal and upright positions.
Date:
May 22, 1900
Creator:
Byars, Edgar
Object Type:
Patent
System:
The Portal to Texas History
Baling-Press.
Patent for baling-presses to prevent the inward-drawing or centripetal movement of the fiber in a press of the roller type (lines 96-97) by “disposed intermediate of the rollers and within the plane of the baling-cylinder for opposing resistance to the inward movement of the fiber and overcoming to a greater or less extent the tendency of the upper layer of cotton to form waves or billows in advance of the rollers.” (Page 1, lines 101-102, page 2, lines 1-6.) Illustration is included.
Date:
April 22, 1902
Creator:
Atkinson, Joseph J.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Gin.
Patent for a new and improved cotton gin. This design calls for the circular saw blades of the gin to pass through two metal ribs, one of which aligns with the tip of the saw teeth, while the other aligns with the root of the saw teeth.
Date:
August 22, 1882
Creator:
Basom, Ransford W.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Gin Feeder.
Patent for a new and improved cotton-gin feeder. This design consists in "a rectangular inclined box, endless feeding belts having spiked slats, the revolving fan at the upper end of the inclined box, and screen at the opposite end and lower side of the box, through which the sand and dirt from the cotton may escape, the current of air from the revolving fan assisting in expelling the sand and dirt, the latter falling between the slats and down the inclined bottom of the box and out through the screen" (lines 73-83).
Date:
June 22, 1886
Creator:
Wiley, Jesse G.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Loading Derrick.
Patent for a new and improved cotton-loading derrick. This design consists in "[t]he portable derrick, comprising the barrow-base having the longitudinal handle-bars, the extended longitudinal and transverse base-sills, and the bearings, the rotary shaft or mast having the slot and sheave, the upper shoulder and upward-projecting stud, the cross-head, the oblique braces connecting its rear arm to the mast, and the derrick-pulleys suspended from the free arm of said cross-head, the rope passing through said slot and over said sheave and to said pulleys and windlass" (lines 79-90).
Date:
April 22, 1890
Creator:
Field, Eldon M.
Object Type:
Patent
System:
The Portal to Texas History