Some cool automotive wire images:
Image from page 1220 of "Automotive industries" (1899) 
Image by Internet Archive Book Images Identifier: automotiveindust44phil Title: Automotive industries Year: 1899 (1890s) Authors: Subjects: Automobiles Aeronautics Publisher: Philadelphia [etc.] Chilton [etc.] View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: there is a space, in which the source of light may be placed,such that, when the light source is wholly in the space, allof the light falling on the reflector will be reflected eitherhorizontally or in a downward direction. The surface of the reflector is generated by revolving,about its horizontal axis, a parabolic arc whose parameie* Text Appearing After Image: Photograph of surface Illuminated by bearCrockett reflector. Crockett head lamp reflector. gradually increases as the arc is revolved through 180deg. from its upper vertical to its lower vertical position.Referring to the drawings, the plane GH, through the axisA and on one side thereof, will cut the reflector in a para-bolic arc B; and any other plane GN through the axis Aand on one side thereof, will cut the reflector in a parabolicarc having a parameter greater than that of the arc cut bythe plane GH; and the parameter of the section will in-crease as the cutting plane passes from the position GHto the position GK, where the parameter of such an axialsection will have its greatest value, the corresponding sec-tion of the surface being the parabolic arc C. Thus thesections of the surface, made by planes through axis A,are parabolic arcs, all having the common axis A and thecommon vertex V, the focus of each arc being situated onthe axis A between F, which is the focus of the parabol Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Porsche_Museum_Exterior_Mirror_Ceiling_Selfie_PorscheM_9June2013 
Image by Valder137 SONY DSC
Image from page 1027 of "Automotive industries" (1899) 
Image by Internet Archive Book Images Identifier: automotiveindust44phil Title: Automotive industries Year: 1899 (1890s) Authors: Subjects: Automobiles Aeronautics Publisher: Philadelphia [etc.] Chilton [etc.] View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: mixture is slightlygreater at the higher compression, and this no doubtaccounts for the fact that the pressure at which detona-tion commenced is higher at the higher compressionratios, instead of slightly lower as would otherwise beexpected due to the higher compression temperature. As a practical and ready means of determining thetoluene value of a fuel, it is interesting to note that thenew aniline test employed by chemists for determiningthe aromatic content of a fuel responds also to the naph-thene content, and therefore this test affords a fairlyaccurate measure of the tendency of the fuel to detonate.The reason for this is shown by reference to Table III(which was printed in the preceding article on this sub-ject), giving, for various fuels, their observed toluenevalues and also their approximate compositions. It maybe seen from this table that the average toluene valueof the paraffins present in petrol is roughly â€" 10 percent. The average for the naphthenes is 4- 30 per cent. Text Appearing After Image: 50 5.5 CO 6.5 TO COMPRESSION RATIO Fig. 8The full lines show the indicated mean pressureobtained and the corresponding compression pres-sure (taken by modified Okill gauge) for varyingcompression ratios, and the throttle closed justsufficiently to prevent detonation of a fuel of lowtoluene value. The dotted line continuations showwhat would have been the resulting mean pressuresat the various ratios had the toluene value beensufficiently high to admit of full open throttle atthe highest compression ratio The average for the aromatic is 4- 75 per centâ€"thetoluene value of benzol being 67 per cent, of toluene 100per cent and of xylene 85 per cent. Although the results obtained from this series of in-vestigations into the factors controlling detonation per-mit of certain fairly definite conclusions being drawn,the writer feels that much still remains to be done, formany discrepancies still remain to be cleared up. Thefollowing conclusions and inferences may, however,safely be drawn: (1) Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
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