...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7364522 | Pulley for power transmission belt and belt power transmission device A pulley body 5 is provided at its both sides with power transmission members 6, 6. When a flat belt 3 becomes misaligned relative to the center of the pulley body 5 and comes into contact with one of the power transmission members 6 | 04/29/2008 |
| 7213894 | Shaft for roller wheel The invention provides a shaft for a roller wheel which is excellent in strength and can achieve a weight saving. The invention provides a shaft for a roller wheel which rotatably supports a roller (3) outward fitted between both end portions (5a, | 05/08/2007 |
| 7134734 | Shaft for roller wheel The invention provides a shaft for a roller wheel which is excellent in strength and can achieve a weight saving. The invention provides a shaft for a roller wheel which rotatably supports a roller (3) outward fitted between both end portions (5a, | 11/14/2006 |
| 6588110 | Guide bar having rotating guide disc The invention relates to a guide bar for a motor-driven chain saw comprising an elongated planar base body which has a guide groove (8) in its outer periphery for guiding a saw chain (6). The saw chain (6) includes cutting links (14), lateral connecting l... | 07/08/2003 |
| 6405833 | Flexible flat rope sheave assembly with separate shoulder and flange surfaces having varying friction properties A segmented elevator sheave assembly has independently variable shoulder and crowning elements for use with flexible flat ropes in an elevator system. This enables selection of high-traction surface finish and crowning for the sheave groove that contacts ... | 06/18/2002 |
| 5980408 | Dampened chain wheel A chain wheel for a chain drive with a chain wheel comprising a damping rim of elastically deformable material at at least one axial side of said chain wheel, said damping rim including circumferentially alternating elevations, each with a peak portion an... | 11/09/1999 |
| 5792017 | Video cassette recorder incorporating therein a belt pulley set enabling a timing belt to be mounted thereover without belt slack A video cassette recorder comprises a power transfer apparatus provided with a timing belt, a capstan motor pulley and a driven belt pulley. The capstan motor pulley includes a first contact body fixed to a capstan motor shaft of a capstan motor and adapt... | 08/11/1998 |
| 5512020 | Belt meandering preventing system in single facer Disclosed is a belt meandering preventing system in a single facer consisting of an upper fluted roll, a lower fluted roll, a gluing mechanism, and an application mechanism having an endless belt extended over a plurality of rolls so as to be able to run ... | 04/30/1996 |
| 5346438 | Belt guide pulley There is provided a clam shell shaped belt guide pulley having first and second curved halves which are hinged together. Each pulley half has curved inner and outer surfaces. The pulley is adapted to be placed on a large diameter shaft without the need to... | 09/13/1994 |
| 5320583 | Protector for front chain sprocket of a bicycle This invention is directed to a protector for a single or front chain sprocket of a bicycle. The sprocket assembly is mounted on a pedal shaft and is non-rotatably coupled with a sprocket-side pedal. The protector comprises a disc which is adapted to be f... | 06/14/1994 |
| 5316524 | Edge guide systems for belt tracking An apparatus for controlling the lateral alignment of a belt arranged to move in a predetermined path includes a first roll arranged to support a portion of the belt passing thereover. The first roll has first and second ends. A first centering assembly f... | 05/31/1994 |
| 5292287 | Hub assembly for a rear wheel axle of a bicycle A hub rotatably engaged on a rear wheel axle of a multi-speed bicycle, a cone disposed on each end of the rear wheel axle, a bearing rotatably engaged between one end of the body and one of the cones, a barrel formed integral on the other end of the body ... | 03/08/1994 |
| 5273493 | Tracking device for endless belts moving on rollers A tracking device for endless belts moves on a pair of rollers--a driving roller (RM) and a tension roller (1)--especially for an emery cloth belt (TS) moving on the cantilevered rollers (1, RM) of a belt sander (S) for wooden floors. The tension roller (... | 12/28/1993 |
| 5234382 | Belt deviation control apparatus An apparatus for limiting deviation of an endless belt/belt sleeve from a desired rotational path. The apparatus has first and second rollers each having a rotational axis and cooperatively supporting an endless belt/belt sleeve trained therearound for ro... | 08/10/1993 |
| 4810238 | Chain guide A chain guide (10) secured to an attachment tab (22) of an attachment link (20) of a roller chain (12) is disclosed for stabilizing the roller chain (12) on a chain rail (14). Chain guide (10) is generally symetrical about longitudinal and lateral axes an... | 03/07/1989 |
| 4642073 | Guide for flexible endless drive member The invention relates to a rocking idler for guiding driving members such as roller chains, belts and like members, comprising a hub adapted to be freely rockably mounted on the same axis of rotation of a driving mechanism, said hub having extending there... | 02/10/1987 |
| 4501576 | Power transmission mechanism A power transmission mechanism includes a gear member and an annular and eccentric floating member having internal gear teeth meshed with external gear teeth of the gear member. A pair of guide plates provided on both outer sides of either the gear member... | 02/26/1985 |
| 4348199 | Buffer device for a roller chain and sprocket coupling A buffer device for reducing the impact and noise of the coupling of a roller chain and sprocket. A groove is provided adjacent the teeth of a sprocket which receives a buffer ring. The buffer ring includes an outer resiliently compressible ring and an in... | 09/07/1982 |
| 4289490 | Improved rear hub chair protector A rear hub for a bicycle, which has a hub shell supported rotatably to a hub shaft through a pair of bearings and which carries two or more sprockets at one axial end of the hub shell which are freely rotatable in one direction, is provided with a protect... | 09/15/1981 |
| 4261214 | Chain noise preventing device A chain noise preventing device wherein a cushioning ring, having an outside diameter larger than that of a semicircular inscribed circle of chain formed when the chain meshes with a sprocket, is arranged on at least one side surface of the sprocket.... | 04/14/1981 |
| 4240303 | Chain sprocket with opposite frangible side guide plates A chain sprocket having guide plates comprising flanges of a frangible material located along opposite sides of the sprocket is disclosed teeth and projecting outwardly therefrom to prevent lateral disengagement of the chain under conditions of severe usa... | 12/23/1980 |
| 4083247 | Apparatus for reducing noise of a carrier roller A noise reduction apparatus for a carrier roller in a crawler tractor, which includes first and second dimpled, annular guard members, each having a steel plate with a noise-absorbing member bonded thereto, and a third annular guard member having a noise-... | 04/11/1978 |