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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7442896 | Method for processing mail A method for processing mail, wherein a plurality of mailing items inserted into insertion places are collected and subsequently transported in a container to postal centers where they are sorted in sorting devices according to postal categories. The invention is ch... | 10/28/2008 |
| 6341699 | Method and apparatus for sorting carpet or similar types of material The invention relates to a method for sorting carpet or similar pieces of material to material type and the like, wherein the method comprises the following steps of: placing pieces of carpet on a transport system; disentangling or separating the pieces o... | 01/29/2002 |
| 5727668 | Needle sorting device A needle sorting device includes an infeed device which singulates and randomly deposits surgical needles upon a first conveyor for transmission to a processing station. Upon transit, one or more cameras to obtain an image of the deposited needles. The im... | 03/17/1998 |
| 5193691 | Can seam inspection apparatus A can seam inspection apparatus. The apparatus has a pathway for a can and the pathway having an inlet and a pair of outlets. There is one outlet for can with a defective seam and another outlet for acceptable cans. A releasable holding device holds the c... | 03/16/1993 |
| 5160019 | Carrier for articles such as eggs and conveying apparatus comprising such a carrier The invention relates to a carrier for articles such as fruits, eggs, comprising a frame, two gripper members each having a free end in which an opening is provided for receiving an article between the free ends, the free ends of the gripper being movable... | 11/03/1992 |
| 5115144 | Automatic selection apparatus of sheet material An automatic selection apparatus for sheet material can automatically distinguish whether sheet materials such as sheets of paper are good or bad. While the sheet materials are carried one by one in the direction perpendicular to the flow direction in the... | 05/19/1992 |
| 4956079 | Apparatus for transporting objects Apparatus for transporting objects in succession through a measuring head. A common drive shaft provides synchronised movement of transfer apparatus, gripper apparatus and indexing apparatus. The transfer apparatus receives objects from a supply and carri... | 09/11/1990 |
| 4869813 | Drill inspection and sorting method and apparatus Apparatus for inspecting and sorting drills oriented in the same direction in a hopper assembly. The hopper assembly feeds the drills, one at a time, and places them in a predetermined ready location. A camera, part of the inspection assembly, mounted dir... | 09/26/1989 |
| 4757891 | Container handling device A rotating, vertically adjustable wheel is positioned above a linear conveyor chain in an operative position to move containers from a linear conveyor chain to an off-line station and then back to the linear conveyor chain downstream of the off-line stati... | 07/19/1988 |
| 4651879 | Automatic bottle sorting system A bottle sorting system includes a carousel which transports bottles through various stations to classify and separate bottles according to identifying characteristics. At a transfer station, bottles are brought into alignment with gripper mechanisms that... | 03/24/1987 |
| 4455225 | Rotary light tester for continuously inspecting empty cans A rotary light tester for continuously inspecting empty cans discriminates between good cans and defective ones by judging the amount of transit light entering the interior of the empty cans. The light seal circular plate and the freely-reciprocative slid... | 06/19/1984 |
| 4373638 | Sorting apparatus Apparatus for sorting ore rocks in which rocks are fed in stream past detector to measure characteristic selected as basis for sorting and into free flight trajectory from which selected individual rocks are deflected according to measure of said characte... | 02/15/1983 |
| 4349112 | Pellet inspection apparatus Apparatus for inspecting nuclear fuel pellets in a sealed container for diameter, flaws, length and weight. The apparatus includes, in an array, a pellet pick-up station, four pellet inspection stations and a pellet sorting station. The pellets are delive... | 09/14/1982 |
| 4330061 | Method and apparatus for detecting and segregating defective commodities from a series of discrete commodities Cigarette packs which leave a packing machine by moving sideways so that one of the major surfaces of each pack faces forwardly are monitored for the presence of defective envelopes during travel between two endless belt conveyors. When the monitoring sys... | 05/18/1982 |
| 4168004 | Mail processing equipment An improvement in mail processing equipment is provided in which items of mail are presented to operators at stations adjacent a continuous transporter. An operator works at any desired pace because items of mail are presented repeatedly until removed by ... | 09/18/1979 |
| 3975260 | Bottle handling apparatus Improvements in bottle handling apparatus whereby bottles may be firmly grasped by the neck thereof for conveying but may be easily and quickly released as desired. A pair of spaced elongated members, somewhat flexible by design, extend outward adjacently... | 08/17/1976 |
| 3952874 | Mail processing equipment The invention provides mail processing equipment which receives opened items of mail for moving these items individually past several stations. Each item is first gripped in a mail carrier which moves longitudinally and which is rotated as it moves to tak... | 04/27/1976 |
