Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 6694584 | Quick set up wire descaler A descaler is provided for descaling the scale on hot finished wire or green rod. The descaler comprises two rollers that are mounted to a rotatable support plate. The support plate and the rollers rotate in unison. One of the rollers pivots relative to t... | 02/24/2004 |
| 6131974 | Roller grapnel The present invention provides an improved grapnel which permits towed ars to be retrieved more easily and with less chance of damaging the array. The invention includes a pair of U-shaped members attached to a center stock, the U-shaped members being at... | 10/17/2000 |
| 6056274 | Boat hoist apparatus An apparatus for selectively raising, storing, and lowering a recreational water craft that includes a first cable. The first cable is attached at one end to a winch for selectively shortening or lengthening the first cable. The first cable is attached at... | 05/02/2000 |
| 5573226 | Apparatus for guiding an enlogated item An apparatus for guiding elongated items, such as cables, wires, hoses, and the like, onto or from spools. The apparatus includes two frame members that are pivotally and hand-releasably connected together to form an enclosed frame through which the elong... | 11/12/1996 |
| 5076398 | Rope suspension system for an elevator A rope suspension apparatus for an elevator system, includes a bed, a motor 1 attached to the bed, a motor shaft 2, a traction sheave 4 so mounted on the shaft that the ends of the traction sheave are inclined at an angle relative to vertical, and at leas... | 12/31/1991 |
| 4842250 | Line reeving system for earth drilling machine An earth drilling machine includes a crown block assembly, a travelling block assembly and a drawworks. The drawworks includes a drum which rotates about a drum axis. The drum axis is oriented at right angles to a fast line plane defined by a fast line sh... | 06/27/1989 |
| 4807723 | Elevator roping arrangement In a traction drive elevator system, the ropes from the counterweight are fed over a secondary or deflection sheave to the bottom of a drive sheave, around the drive sheave for more than 180° and then to the elevator car. The sheaves contain polyurethane... | 02/28/1989 |
| 4708321 | Multiple sheave assembly with angled rollers Disclosed is a sheave assembly for supporting a downward extending cable wherein a plurality of rollers are disposed upward and outward in a staggered manner from a plane defined by a downward facing arcuate path along which the cable approximately passes... | 11/24/1987 |
| 4690381 | Pulley block assembly for aerial line A pulley block assembly having a pulley block unit for an aerial line, comprising a pulley frame, a pulley rotatably supported by the pulley frame, and an inverting guide roller rotatably supported by the pulley frame opposite to the pulley in the pulley ... | 09/01/1987 |
| 4580377 | Telescopic mast A telescopic mast comprises a plurality of mast sections (2, 3, 4) which can be displaced axially relative to one another while guided by each other. The sections are arranged to be moved out of one another by means of a continuous line (13), which passes... | 04/08/1986 |
| 4296917 | Contoured cable roller A log skidder (10) has a fairlead (26) with a main guide roller (54) having a special contoured surface (60) to prevent grooving of the surface of the guide roller (54), to prolong cable life, and to assist in evenly winding the cable (32) on a winch drum... | 10/27/1981 |
| 4238116 | Skidder jack This invention consists of a front and rear lift mechanism or jack for lifting bogged down wheels of a skidder from ruts in the ground. It consists of a front and rear bracket each of which is equipped with a plurality of horizontal and vertical rollers w... | 12/09/1980 |
| 4154171 | Overhead cable transport installation The invention relates to a skilift or chairlift having cable supporting wheels arranged in the form of an inverted V to allow the passing of the grips between the wheels. The wheel has a lining shaped as a half pneumatic tire and made of a quasi inelastic... | 05/15/1979 |
| 4098492 | Quick change traveling block A travelling block system that can be changed quickly from a four support line system to a two support line system, which comprises a travelling block having two sheaves, and a single sheave block with hook, attached to the crown of a boom. The two sheave... | 07/04/1978 |
| 4084794 | Hoist or winch mechanism adapted for multiple variable rigging Portable hoist or winch apparatus comprises such mechanism having a frame carrying a drum for a cable or other flexible member, and load-carrying means which includes first and second pulley block assemblies. A hook-bearing first assembly, in normal use, ... | 04/18/1978 |
| 3940112 | Crown block Disclosed is an open center crown block pivotally mounting a pair of sheaves on each of the opposite sides of the well centerline. On one side of the crown block, there is pivotally mounted a crossover sheave for transferring the drilling line from one si... | 02/24/1976 |
