Some cool graphite machining pictures:
Image from web page 756 of “Knight’s American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary and digest of mechanical appliances in science and the ar
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Title: Knight’s American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary and digest of mechanical appliances in science and the arts
Year: 1882 (1880s)
Authors: Knight, Edward H. (Edward Henry), 1824-1883
Subjects: Industrial arts Mechanical engineering
Publisher: Boston : Houghton, Mifflin and Company
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries
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)air ()f sheaths jointed together make aconvenient ])air of compasses for many purposes. The poicil-lead.s as sold by stationers and jewelersfor jtencil-cases an<l ever-point pencils are small cylin-ders created of graphite and clay kneaded with wateruntil it assumes the consistency of putty. This is.placed in a cylinder and forced by heavy stress PENCIL-CASK. 1659 PENDANT. Fig. 3tilS.
Text Appearing Following Image:
by way of a circularhole in the bottomof the cylinder, thesize of the openingdetermining the sizeof the lead which isindicated in theRubber-Tipped Pencils. trade hy a quantity. The material issuesin long lie.xible threads, which are received on sheetsof metal and placed in an oven. The length of timeoccupied in the baking determines the hardness.The threads are then broken up into brief piecesand boxed according to their sizes, Nos. 1 to 9. two. A tiny brush or tool employed by painters.Pencils are created of camel, badger, squirrel, fitch, orsable hairs. three. To draw a line of white paint along a mortar-joint in a brick wall, to render the joint a lot more con-Fig 3619 ^picuous and contrast with the colour of the bricks. This is termed penciling. Pencil-case. A holder for a pencil,typically with a slide by which the pencil is Fig. 3620. Pencil-compass. A single obtaining a Fg 322pencil-finish at one leg or a compassto which an ordinary pencil may beattached, as in the e.caniple. Pencil-sharpen-er. A deviceagain
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Image from page 630 of “Contemporary mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, becoming a supplementary volume to Appletons’ cyclopaedia of applied mechanics” (1892)
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Title: Contemporary mechanism, exhibiting the most recent progress in machines, motors, and the transmission of energy, becoming a supplementary volume to Appletons’ cyclopaedia of applied mechanics
Year: 1892 (1890s)
Authors: Benjamin, Park, 1849-1922
Subjects: Mechanical engineering
Publisher: New York, D. Appleton
Contributing Library: Mugar Memorial Library, Boston University
Digitizing Sponsor: Boston University
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Text Appearing Before Image:
cord of wood for wouldbe consumed, and other expenditures, such as bottles, assay supplies, and so on., would quantity to extra depreciation, estimating the plant to expense ,000, would amount to |two 50 a day,creating a total expense of , or ,830 a month—an averaee of five per ton as a result leav-ing but a small margin of profit in hand-sampling appropriate. The income are generally derivedfrom the samplers connection with the ore buyers and smelting operates, getting reduced ratesfor reduction, as effectively as tariff arrangements with the railroads, enabling tliem to purchaseores to fantastic advantage. In numerous situations they act as agents for the smelting operates on com-mission. The greater portion of the sampling functions in the United States are in Colorado, wherethe railroad faciliti(!S are admirable. There is hardly a mining camp in the State whichdoes not contain a single, whilst in California there are but two, in Nevada but 1, 3 in Idaho,six in Montana, five in Utah, and a few in New Mexico and Arizona.
Text Appearing Soon after Image:
Fig. -Mixer and diviLler. Oven, Coke : see Coke Ovens. 004 PACKING. PACKING. Corrugated Copper Gaskets, shown in Fig. 1, are now employed for packingpipe joints, ihey are produced of thin sheet-copper, stamped with concentric corrugations,which on compression tiatten out and i)rodace a total metal union. Tiiey are notimpaired by heat or cold, and can not blow out. From three to six corru-gations inside the bolt circle is ample to insure a permanent joint.They are made in any desired shape. Many varieties of packings forjoints are now in the niarket. created of paper, rubber, cotton, asbestos,graphite, or combinations of these and other materials. Some of theseare of compositions which are kept trade .^ecrets, and they are identified inthe marketplace by arbitrary names,such as Vulcanized Fibre. Vul-cabeston, Usudurian, and so on., orby the names of the makers, asJenkins Packing, and so forth. Tripps Metallic Packivg is shown in Figs. 2 and 6. It consists of matched sections, which are held against the rod by circular sprin
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Image from page 250 of “Ellington 1918” (1918)
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Title: Ellington 1918
Year: 1918 (1910s)
Subjects: Air bases–Texas–Houston Flight education–Texas–Houston
Publisher: [Houston, Tex.] : [s.n.]
Contributing Library: Rice University, Fondren Library
Digitizing Sponsor: LYRASIS Members and Sloan Foundation
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thony 6 Lieut. H. A. McKay 7 Lieut. A. M. Haskill eight Lieut. G. B. Hodge Web page 245] [ELLINGTON FIELD—1918 For Your Automobile USE TEXACO MOTOR OIL TEXACO GASOLINE TEXACO TRANSMISSION LUBRICANT TEXACO QCKWORK POLISH For Shop and %plling Stock General Lubricating Oils Texaco Crater Compound Texaco Cylinder Oils Texaco Machine Oils Texaco Air Compressor Oils Texaco Illuminating Oil Texaco Signal Oil Texaco Fuel Oil TEXACO GREASESMotor Cup Grease : Graphite Axle Grease GREASES-THAT-LUBR1CATE For Hard and Soft Wood Floors use Texaco Liquid Wax Dressing Pure, Limpid, Liquid IVax—Gives a Superb Finish Texaco Asphalt for Every single Purpose 99 % Pure Bitumen Texaco Roofing Prepared TO LAY—PREPARED TO Keep The Texas Business Higher Grade and Uniform Top quality Petroleum ProductsGeneral Offices: : : HOUSTON, TEXAS AGENTS EVERYWHERE rfTj To our Boys in Uniform: When in Houston go to the Soldiers Rest^-u» Area, 1st floor The Texas Company building, opposite postoffice ELLINGTON FIELD—1918] [Page 246
Text Appearing After Image:
The AmericanConstructionCompany HiiiiiiiiiiiiiiiiiiiiiiiiiiniiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiMiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiHiiiiiiiitiiiiiiiiiiiiiiiiiiiiiiniiiiiiniiiM Qeneral Contractors 11111111111 r ■ e i r c l i [■ 111 e 11 [ I [ 11 ■ c 11 [i ■ 11 [ ■ 11 l ■ 11 r ■ 111 r 111 111 mi i Hi I 111 I ill nil Ill 111] I MiiMiiMiiMiiiiiiitiiiimiiiiiui BUILDERS OF Ellington Field Camp Logan – Camp Normoyle Web page 247] [ ELLINGTON FIELD—1918
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