"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7540102 | Snow blower apparatus A snow blower has an adaptive speed control, optionally an open carrier differential, which is optionally selectively lockable. The auger is preferably chain driven. The engine output shaft optionally has a first fixedly secured pulley and a second clutched pulley. ... | 06/02/2009 |
| 7487608 | Walk-behind self-propelled snow removing machine A walk-behind self-propelled working machine has a machine body, a working unit mounted on the machine body to perform a working operation, an engine mounted on the machine body to drive the working unit, and a traveling unit mounted on the machine body and drivable... | 02/10/2009 |
| 7324883 | System and method to detect a failed shear bolt supporting a concave of an agricultural combine A system and method for detecting existence of a failed or broken shear bolt supporting all or a portion of a concave of a threshing system of an agricultural combine and utilizing information relating to rates of movement and absence of movement of a concave to det... | 01/29/2008 |
| 7305778 | Self-propelled working machine A self-propelled working machine has a pair of transporting parts, a working part, an engine for driving at least the working part, and a main switch for turning the engine on and off. A locomotion preparation switch produces a command for moving the transporting pa... | 12/11/2007 |
| 7305777 | Auger for snow throw machine A snow throwing machine including a housing, an engine, an impeller and an auger for collecting snow and directing it to the impeller. The auger including an auger shaft disposed transversely in the housing and drivable by the engine, and a plurality of flytes mount... | 12/11/2007 |
| 7302765 | Implement attaching apparatus An apparatus for connecting a mechanized implement to an all-terrain vehicle having an undercarriage with a front axle and a rear axle includes a unitary frame having a base connected to the unitary frame and a swingable portion. The mechanized implement includes an... | 12/04/2007 |
| 7159377 | Powered appliance and accessory A powered appliance includes a working member, a handle operably coupled to the working member and a control movable between a first position proximate the handle in which movement of the working member is permitted and a second position distant the handle in which ... | 01/09/2007 |
| 7096608 | Overload prevention device for a snow removing machine An overload prevention device has a first rotational member for driving engagement with an input shaft of an auger transmission of a snow removing machine, a second rotational member engaging the first rotational member for rotation therewith over a predetermined to... | 08/29/2006 |
| 6948577 | Electric vehicle An electric vehicle driven by at least one electric motor is provided. The vehicle includes a controller for controlling the electric motor and at least one braking device. The controller gradually reduces the rotational speed of the electric motor in accordance wit... | 09/27/2005 |
| 6948569 | Snow auger assembly A device for removing material from a surface includes a blade, an auger positioned in close proximity to a front side of the blade and operably mounted on an axle for rotary motion relative to the blade whereby material accumulating at the front side of the blade d... | 09/27/2005 |
| 6938364 | Two stage snowthrower with impeller housing bypass A two stage snowthrower includes snow removal components comprising a transversely extending auger housed within an auger housing. A generally cylindrical impeller housing is joined to a rear wall of the auger housing. A rotatable impeller within the impeller housin... | 09/06/2005 |
| 6810609 | Snow groomer having an improved variable geometry tiller assembly A snow tiller (10) suitable for grooming ski hills, trails, or other areas, provides an adjustable profile tiller assembly. The snow tiller (10) is preferably pulled by a tracked vehicle (12) and has a tiller assembly formed of a plurality of ti... | 11/02/2004 |
| 6637134 | Snow track preparation machine with mill mounted in a revolving manner Snow track preparation machine with mill installed in a revolving manner and including a pump driven by a power source, a hydraulic motor connected to the pump on the delivery side and the return side, an actuator supported on the assembly frame and reali... | 10/28/2003 |
| 6539649 | Power transmission system for snow-removing machine A power transmission system for use in a snow-removing machine has a drive shaft having a first end for supporting a snow blower having a forward end and a rearward end. The drive shaft has second end disposed opposite the first end and for extension from... | 04/01/2003 |
| 6523283 | Overload protecting device for snow removing machine An overload protecting device assembled in an auger transmission is disclosed as including a worm wheel having its side wall formed with a plurality of wheel-side protruding segments, a boss member engaging with the wheel and fixedly coupled to an auger s... | 02/25/2003 |
| 6223110 | Software architecture for autonomous earthmoving machinery In accordance with the present invention, a modular architecture to organize and coordinate components that are needed to automate earthmoving tasks, and to coordinate the flow of data between the components is disclosed. The architecture includes three m... | 04/24/2001 |
| 6105348 | Safety cut-off system for use in walk-behind power tool A safety cut-off system prevents the running of a motor of a self-propelled lawn mower having left and right drive wheels, and forward and reverse gears. The safety cut-off system includes a first forward presence lever manipulatable, by an operator, betw... | 08/22/2000 |
| 5000302 | Power transmitting device for working machinery A transmission and brake assembly for driving the auger of a snow blower wherein the transmission includes a multiple disk wet clutch and the brake is juxtaposed to this clutch but separated from it by a wall so that the liquid will not adversely effect t... | 03/19/1991 |
| 4996783 | Accident prevention device for rotary snow-plow An accident preventing arrangement for rotary snowplows includes a front safety bar in front of the rotating blades. When lowered, the safety bar actuates switches which, in turn, not only disengage a clutch for a drive shaft which rotates the blades, but... | 03/05/1991 |
| 4869124 | Control system for apparatus A dead-man lever control system for apparatus such as a snow blower or lawnmower includes a latch and key arrangement connected to the levers which permits the levers to be operated independently or conjointly, and which also permits one lever to be locke... | 09/26/1989 |
| 4760657 | Snow sweeping method and apparatus A snow-sweeping roller for replaceable attachment to a utility road vehicle (1) having brush-equipped roller (4) rotatably affixed at the underside of the vehicle. To achieve low-wear operation of the sweeper roller (4) and simultaneously low energy consu... | 08/02/1988 |
| 4476643 | Hand control system for motorized implements A hand control system for a motorized implement such as a snowblower, lawn mower or tiller having a U-shaped handle in which a pair of control levers and a U-shaped bail are pivotally mounted on the handle such that the control levers can be pivoted indep... | 10/16/1984 |
| 4402149 | Impact guard for declutching snow thrower A snow plow including an automotive car body equipped with an engine, a transmission and a clutch means; an operation-frame attached to the rear upper portion of said car body; a clutch operation means attached to said operation frame, said clutch operati... | 09/06/1983 |
| 4377044 | Snow thrower with dual controls A manual electrically powered snow throwing device has features that allow it to be used either in a shovel mode or in a pushing and pulling mode. The device has an upper handgrip with forward and rearward handgrip portions. The forward handgrip portion i... | 03/22/1983 |
| 4255879 | Snow blower dead man control A mechanical dead-man type control for the snow blower auger and wheels but without killing the engine.... | 03/17/1981 |
| 4062135 | Safe operation control for a snowblower A combined mechanical and electrical control for the traction drive and collector-impeller drive of a snowblower is provided which operates to disconnect the traction drive when the operator loosens his grip on a traction drive control lever to an extreme... | 12/13/1977 |