https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=86082&pn=124 Weighing Heavy Bodies Patentees: Thaddeus Fairbanks - St. Johnsbury, Caledonia County VT , Erastus Fairbanks - St. Johnsbury, Caledonia County VT Granted:1837-02-10
Manufactured by E. & T. Fairbanks & Co. - St. Johnsbury, Caledonia County VT

Abstract: We have made certain Improvements in the Machine for Weighing Heavy Bodies in addition to those formerly made by us, and for which we obtained Letters Patent bearing date the 13th day of June, 1831 Patent #6573X); and we do hereby declare that the following is a full and exact description of our said improvement, reference being had to the drawings which accompany this specification and make part of the same; and we do further declare that in these drawings and this description we have represented and described many parts which are common to other machines for the same purpose and are found in that patented by us as aforesaid, which we have done for the purpose of more clearly explaining those parts which we believe to be new and of our own invention, and which are distinctly set forth in the claim hereunto appended. Claim: The variation in the manner of connecting the two levers in the center, (whether they be composed of one or more parts each,) to wit: by means of knife-edges resting in pendulous rings or circles, as shown in drawing No. 1, letter K, and drawing No. 2, Fig. 6, and Figs. 3 and 4.
This is one of 85,369 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=40514&pn=444,937 Wrench Patentee: Silvanus Hussey - Brant NY Granted:1891-01-20

Multiple jaws, including ability to reach countersunk nuts, and grip pipe and similar round objects. The pipe gripping jaw insert sets on a spherical base. Adjustment for the movable jaw is a screw extending to the end of the handle. Corresponding Canadian patent CA-38,492 was granted March 15, 1892. In function and overall appearance, this design is similar to the "Tryon Wrench" (patent no. 667,143). An unmarked combination tool appearing to match this patent is known; a comparison to the TRYON tool demonstrates several differences. This patent improved by Hussey's May 24, 1892 patent (no. 475,450). A wrench marked with that patent date has head and jaws more closely resembling this patent's design. The NIAGARA WRENCH COMPANY was incorporated at Albion, NY in December, 1892 under the laws of West Virginia in relation to the Hussey patents.
This is one of 85,369 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=86076&pn=1,949,128 Ignition point file Patentee: Rikio Nakano - Honolulu Territory of Hawaii Granted:1934-02-27
Manufactured by Heller Brothers Co. - Newark NJ

Small, thin file with one end designed as a spring "pocket clip." The specifications differentiate this design from files in patent nos. 1,671,811 and 1,663,089. Known examples made by HELLER BROS. (Newark, NJ), and also marketed by PLOMB Tool Co.(Los Angeles, CA).
This is one of 85,369 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=86074&pn=3,416,407 Loading Apparatus for Reciprocating and RotatingShaft Patentees: Howard W. Renner - Worcester, Worcester County MA , Herbert R. Uhtenwoldt - Worcester, Worcester County MA Granted:1968-12-17
Assigned to Heald Machine Co. - Worcester, Worcester County MA

Abstract: This invention has to do with a loading apparatus arranged to introduce workpieces into the operating area of a work machine tool and consisting of a shaft which is both slidably and rotatably carried in the machine tool housing, separate actuators are provided for rotating and sliding the shaft and means is provided to cause these actuators to operate in a cycle for the loading operation. The art of loading workpieces into a machine tool has received a considerable amount of attention in recent years. This is because, generally speaking, the time in which loading takes place is a time when the machine is not productive; it is important, therefore, from the point of view of economics, to reduce this time to a minimum. One such mechanism which is particularly useful for loading the outer races of ball bearings into an internal grinding machine is shown in the patent application of Uhtenwoldt, Ser. No. 533,904, filed Mar. 14, 1966; in this construction, a loading plug is automatically moved longitudinally and rotatably about a longitudinal axis from a low position in alignment with the machine chuck to an upper position in alignment with the workpiece chute pickup point. The loading apparatus is operated automatically by use of a sequential valve which shifts fluid from one operating cylinder to another of the mechanism. Although this apparatus operates effectively, it is expensive, because of the many hydraulic lines that are necessary. With such a complex electrohydraulic control, a certain "amount of time is involved because of the long hydraulic lines which add hydraulic response time to the system. These and other difficulties experienced with the prior art devices have been obviated in a novel manner by the present invention. Claim: A loading apparatus, comprising (a) a base, (b) a shaft slidably and rotatably carried in the base, (c) an arm extending laterally from one end of the shaft and having a workpiece-holding means located a substantial distance from the shaft, (d) a first actuator for rotating the shaft, (e) a second actuator for sliding the shaft, (f) means causing the actuators to move the shaft and the workpiece-holding means in a cycle to successive positions relative to the base, and (g) stop means assuring that the workpiece-holding means has reached one of the said positions before it starts to move to the next successive position in the cycle, the stop means being provided for assuring that the rotative movement of the shaft does not extend beyond a predetermined range and consisting of a cam follower extending from the shaft and a cam plate associated with the base and having guide surfaces to be contacted by the cam follower, the cam plate being a curved plate arranged concentrically of the shaft, the cam follower comprising a roller arranged with its axis perpendicular to the shaft axis, and the guide surfaces comprising edges of the plate such as would Abe generated by a radial line moved first axially only a short distance, secondly radially and axially to generate the inner end of a slot, thirdly axially only a second distance less than the first distance, fourthly radially only through a substantial angle, fifthly axially only a distance equal to the second distance, sixthly axially and radially to generate the inner end of a slot, and seventhly axially only a distance equal to the first distance.
This is one of 85,369 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=18273&pn=314,625 Calipers and Dividers Patentee: Oscar Stoddard - Detroit, Wayne County MI Granted:1885-03-31
Manufactured by J. Stevens Arms & Tool Co. - Chicopee Falls, Hampden County MA

Abstract: The object of my present invention is to construct a compass (for mechanical purposes) that will be durable and may be readily adjusted to meet all the requirements necessary to the complete workings of an implement of this class and my present invention consists in the arrangement or combination of parts, and in the novel way of attaching to and operating or adjusting the position of the legs proper of a compass. Claim: In combination with the legs of a compass, the adjusting-arms pivotally attached to said legs by means of the metal yokes D, having arms t t, and set-screws, as specified, said adjusting-arms secured at their upper end by a set-screw.
This is one of 85,369 patents currently in the database at datamp.org

]]>