https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=41537&pn=154,848 Carpet-Stretchers Patentee: William H. Curtis - Buchanan MI Granted:1874-09-08
Manufactured by Richard W. Montross - Galien MI

Carpet stretcher comprised of a bar with hooks and loop wires, an anchor bar with successive stops for leverage, and a lever handle with a hook for the loop wires and a spur for the fulcrum. An 1875 Excelsior Mfg. Co., Buchanan, MI ad (1875 MICHIGAN State Gazetteer & Business Directory) shows a wood lever handle as shown in the patent drawing. A January 1876 ad with a Chicago address shows the lever handle in malleable iron with a tack hammer head and tack claw at the end. The set was sold as the EXCELSIOR CARPET STRETCHER and TACK HAMMER COMBINED for many years. Most of these malleable iron tack hammers have separated from the other components. A complete set in the original box was written up by Tim Bonelli in the Dec. 2009 M.W.T.C.A. GRISTMILL (pg. 11).
This is one of 84,523 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85225&pn=3,361,033 Rotating and Swiveling Clamping Table for Machine Tools Patentee: Johann Müller - Munich, Munich District Bavaria, Germany Granted:1968-01-02
Manufactured by Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich, Munich District Bavaria, Germany
Assigned to Friedrich Wilhelm Deckel - Zug Zug Canton, Switzerland

This invention is an improvement on the clamping table disclosed in co-pending application Ser. No. 258,482, filed Feb. 14, 1963, now Patent No. 3,248,101, by Johann Müller and Horst Lazenberger, for "Dual Swivel Axes Clamping Table," owned by a common assignee. Claims priority, application in Germany, Aug. 28, 1964. Abstract: This invention relates broadly to machine tool clamping tables, and more particularly to a clamping table in which the clamping surface and the workpiece carried thereby can be brought from a vertical into a horizontal position, and vice versa, with slight effort, and in which the swivel and rotation axes of the clamping surface are positioned so as to enable the working range of operation of the machine tool used in conjunction therewith to be best utilized for machining all five surfaces of the workpiece on the clamping surface or plate. Clamping tables for machine tools are known in the prior art in which the clamping plate can rotate about an axis extending at right angles to the plane of the clamping plate to provide a turntable, and in which this axis itself can be swiveled about a swivel axis intersecting it an angle of approximately 45 degrees. With this arrangement a workpiece on the clamping plate can be brought into any position in space so that its entire surface can be machined with a machine tool spindle, with the exception of the side of the workpiece which bears on the clamping plate, without having to change the direction or attitude of the machine tool working spindle axis or without having to re-clamp the workpiece on the clamping plate. However, the known clamping tables of the prior art of this type have the disadvantage that the mass of the workpiece must be lifted a considerable amount or distance when the workpiece is brought from a vertical position into a horizontal position such as adjacent a machine tool spindle. The operator must then exert considerable lifting work at great effort to swivel the workpiece and table from one position to another. This problem is the subject of previously mentioned co-pending application Ser. No. 258,482, filed Feb. 14, 1963 by Johann Müller and Horst Lanzenberger, and it discloses a clamping table structure which indicates a solution to the problem of how to avoid the necessity of exerting lifting work when moving the workpiece and clamping plate from the vertical to the horizontal position. The clamping table of the present invention also provides a solution to this problem and enables the workpiece and clamping surface to be swiveled from one attitude to another with the exertion of little or no lifting work. This advantage of the clamping table of the present invention will not be discussed in detail in this specification since it was discussed in the previously-filed mentioned application. Claim: A machine tool clamping table comprising, a clamping plate for a workpiece, an intermediate portion, and a base portion, said clamping plate pivotally connected to said intermediate portion to rotate about a pivot axis normal to the plane of said clamping plate, said intermediate portion pivotally connected to said base portion along a swivel axis intersecting the pivot axis at substantially 45°, and said clamping plate having an upper surface facing the point of intersection of the pivot and swivel axes.
This is one of 84,523 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85224&pn=3,338,135 Milling Machine Patentee: Johann Müller - Munich, Munich District Bavaria, Germany Granted:1967-08-29
Manufactured by Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich, Munich District Bavaria, Germany
Assigned to Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich, Munich District Bavaria, Germany

Claims priority, application in Germany, Nov. 12, 1964. Abstract: An object of the invention is the provision of a generally improved and more satisfactory milling machine of the type having both a horizontal spindle and a vertical spindle. Another object is the provision of such a milling machine having a simple and effective bracing means for holding the spindle head more securely and which, in so doing, enables the spindle stock of the horizontal spindle to be made higher and therefore more rigid than is the case when there is no such bracing means for the vertical spindle. Still another object is the provision of a milling machine having simple and effective bracing means for bracing the lower end of the spindle head of a vertical spindle, thereby holding the lower end of such spindle head rigidly notwithstanding the fact that such spindle head may project downwardly a considerable distance from the spindle stock of the vertical spindle, thereby insuring that the extent of downward projection of the spindle head is no longer a limiting factor in the design of the milling machine. Claim: A milling machine comprising means forming a support for a horizontal spindle, a vertical spindle stock mounted on and displaceable horizontally on said support for said horizontal spindle, and a vertical spindle head mounted on said vertical spindle stock, characterized by the fact that said support for said horizontal spindle has means for holding two brace members in positions projecting horizontally from said support at an elevation about that of said horizontal spindle, and by the fact that said spindle head extends downwardly into the region of said brace members and has means for connecting with said brace members so that said 'brace members help to stabilize said spindle head.
This is one of 84,523 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85223&pn=3,295,415 Machine Tool With Two Alternately Usable Spindles Patentee: Johann Müller - Munich, Munich District Bavaria, Germany Granted:1967-01-03
Manufactured by Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich, Munich District Bavaria, Germany
Assigned to Friedrich Wilhelm Deckel - Zug Zug Canton, Switzerland

Claims priority application in Germany, Oct. 28, 1964. Abstract: Machine tools of this general description, which provide two alternately usable spindles where one of the spindles is mounted in a spindle block or housing which is displaceable on the support or housing of the other spindle, are known in the art and such a machine is disclosed in Patent 3,117,493 for Machine Tool, issued to K. Zwick et al., on Jan. 14, 1964, and owned by the assignee of the present application. In such a machine tool, such as a milling machine with two horizontal spindles (drilling and milling spindles) or with one horizontal and one vertical spindle, the spindle housing is designed so that it can be pushed from a working position, of the spindle carried thereby, into a rest or nonuse position and it remains in the latter position during the period of working with the second spindle without interfering with the operation of the second spindle. Several designs for the drive of the two alternately usable spindles are known in the prior art with the previously mentioned patent showing the use of only one driving motor and one main drive transmission for both spindles jointly. With this arrangement the motor and transmission are housed in the machine main frame or stand and are disposed to first drive the main spindle. From the motor the drive is transmitted through gears mounted in the machine frame to gears mounted in the spindle housing which are connected with the spindle mounted therein. In order that the spindle housing may be displaced relative to the drive connection in the machine frame, at least one of the gears must be designed as a relatively long toothed cylinder and either the machine frame or the spindle housing must have a correspondingly long aperture therein for the cylinder, and this is bad for the stability of the machine parts since the aperture tends to weaken the framework. Claim: In a machine tool with two alternately usable spindles, a support member, a spindle housing displaceably mounted on said support member, a first spindle means mounted for rotation on said spindle housing, a driving motor supported by said spindle housing and connected to rotate said first spindle means, transmission members connected in said spindle housing and connected to said driving motor to be driven thereby, a second spindle means mounted for rotation on said support member, transmission parts connected to said second spindle means, said spindle housing being displaceable on said support member from a working position of said first spindle means to a rest position of said first spindle means in which it remains during use of said second spindle means, and said transmission members connected to move into driving connection with said transmission parts to rotate said second spindle means with said driving motor when said support member is displaced to the rest position.
This is one of 84,523 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84936&pn=103,479 Clamping and Feeding Device for Material Bars of Uniform Cross-Section to Be Processed Patentee: none listed - Munich, Munich District Bavaria, Germany Granted:1924-02-16
Assigned to Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich Germany


This is one of 84,523 patents currently in the database at datamp.org

]]>