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Manufacturers Index - Carlton Machine Tool Co.
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
1,500,365 Jul. 08, 1924 Transportable Throttle Device Jack C. Carlton Cincinnati, Hamilton County, OH
1,557,241 Oct. 13, 1925 Friction Clutch Jack C. Carlton Cincinnati, Hamilton County, OH
1,598,581 Aug. 31, 1926 Clutch and Brake Mechanism for Reversing Gearing Jack C. Carlton Cincinnati, Hamilton County, OH
1,619,190 Mar. 01, 1927 Radial Drill Jack C. Carlton Cincinnati, Hamilton County, OH
1,638,654 Aug. 09, 1927 Radial Drill Jack C. Carlton Cincinnati, Hamilton County, OH
1,642,642 Sep. 13, 1927 Clutch Mechanism Jack C. Carlton Cincinnati, Hamilton County, OH Original application filed, 23 Mar., 1922. Divided and this application filed 02 Mar., 1926.
1,683,528 Sep. 04, 1928 Clutch Mechanism for Reversing Gear Jack C. Carlton Cincinnati, Hamilton County, OH
1,684,344 Sep. 11, 1928 Trasmission for Radial Drill Arms, Elevating Mechanism and Drill Spindles Jack C. Carlton Cincinnati, Hamilton County, OH
2,002,446 May. 21, 1935 Clamping Mechanism for Radial Drills Jack C. Carlton Cincinnati, Hamilton County, OH
2,002,469 May. 21, 1935 Column Clamp for Radial Drills Jack C. Carlton Cincinnati, Hamilton County, OH
2,049,891 Aug. 04, 1936 Slide Clamp Jack C. Carlton Cincinnati, Hamilton County, OH
2,180,289 Nov. 14, 1939 Drilling and Honing Machinery Jack C. Carlton Cincinnati, Hamilton County, OH
    Drilling and Honing Machinery Albert C. Spangenberg Cincinnati, Hamilton County, OH  
2,233,340 Feb. 25, 1941 Clamping Mechanism Jack C. Carlton Cincinnati, Hamilton County, OH
2,375,662 May. 08, 1945 Automatic Tapping Attachment Herbert Keeling Cincinnati, Hamilton County, OH
    Automatic Tapping Attachment Fred Mummert Cincinnati, Hamilton County, OH  
2,737,832 Mar. 13, 1956 Clamping Mechanism Kenneth L. Volz Mount Healthy, Hamilton County, OH
    Clamping Mechanism Miles L. Weidig Cincinnati, Hamilton County, OH  
2,859,295 Nov. 04, 1958 Zero Speed Mechanism Miles Weidig Cincinnati, Hamilton County, OH
2,866,347 Dec. 30, 1958 Preselect Mechanism Miles Weidig Cincinnati, Hamilton County, OH
2,926,554 Mar. 01, 1960 Hydraulic Spindle Balance Miles Weidig Kenwood, Hamilton County, OH
3,151,719 Oct. 06, 1964 Hydraulic Mechanism Miles Weidig Cincinnati, Hamilton County, OH
3,302,492 Feb. 07, 1967 Sensing Device Miles L. Weidig Kenwood, Hamilton County, OH
3,339,122 Aug. 29, 1967 Digital Positional Control Arlon G. Sangster Worcester, Worcester County, MA
3,451,125 Jun. 24, 1969 Automatic Tool Changer Robert Lehmkuhl Cincinnati, Hamilton County, OH
3,545,335 Dec. 08, 1970 Spindle Clamp Robert A. Lehmkuhl Cincinnati, Hamilton County, OH
3,568,566 Mar. 09, 1971 Tool Spindle Mechanism Miles Weidig KIenwood, Hamilton County, OH Abstract
An axially adjustable tool-locking mechanism for automatic machine tools utilizing a draw tube with a locking bar and an ejector collar and a plurality of locking fingers for moving said tool holder into locking or released position.
3,669,556 Jun. 13, 1972 Automatic Machining Center Robert A. Lehmkuhl Cincinnati, Hamilton County, OH
3,723,016 Mar. 27, 1973 Spindle Depth Control Robert A. Lehmkuhl Cincinnati, Hamilton County, OH Abstract
A horizontal boring machine of the type having a traversing spindle and utilizing fluid motor means for driving the spindle with a tool to a cutting position then moving the tool into the workpiece to a preselected depth with electrical means actuated when said preset depth has been reached to cause a change in the flow of oil in the fluid motor to retract the spindle.
4,149,822 Apr. 17, 1979 Headstock Balancing Arrangement for Machine Tools Robert A. Lehmkuhl Cincinnati, Hamilton County, OH Abstract

This invention relates to a machine tool having an upright column movably supported on a bed with a saddle movable along the guide surface of the column, supported on the bed of the machine tool and a headstock with a balancing arrangement, comprising a bar supported at each of its ends by individual cables and the headstock counterbalanced by means of a hydraulic cylinder connected to said headstock, whereby upon the traversing of the headstock, the bar counterbalances the headstock to a series of cables.