Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6969206 | Tension generating mechanism for a printing apparatus A printing apparatus includes a conveyance mechanism for conveying a web to a transfer unit, and a tension generating mechanism for applying a tension to the web fed to the conveyance mechanism, wherein the tension generating mechanism includes a tension generating ... | 11/29/2005 |
| 5178070 | Apparatus and method for controlling print timing operations An apparatus and method are disclosed for determining the position and angular velocity of a print drum. The apparatus includes a detector that is positioned proximate to the drum, and a processor coupled to the detector. The drum has a cylindrical body w... | 01/12/1993 |
| 4821644 | Method and apparatus for positioning a member The method utilizes an encoding switch to derive encoded position signals representing the current position of a member such as the print element of a franking machine. The switch has conductive strips and in order to ensure reliable operation of the swit... | 04/18/1989 |
| 4815873 | Initializing method for printing type rings in printer Disclosed is herein an initializing method for printing type rings in a printer having printing type rings, a sensor disc and a detector portion which constitutes a plurality of main detecting portions and an end detecting portion, the printing type rings... | 03/28/1989 |
| 4775253 | Printer with a movable carriage and a light source mounted off the carriage for positioning a type element mounted on the carriage Impact type printer of a construction having a carriage including a character type wheel, a light source disposed outside the carriage, device for introducing light beam from the light source into the carriage such as a flexible photoconductor, a mirror, ... | 10/04/1988 |
| 4747708 | Selector device for a character-carrying element on printing machine The selector device for a character-carrying element of a printing machine comprises a d.c. electric motor whose rotor is capable of selectively rotating in both rotational directions a coupling arrangement comprising a pinion on the motor shaft and a gea... | 05/31/1988 |
| 4655130 | Printer A printer for printing characters on a recording medium includes, a printing drum provided on a first portion and a second portion of the outer periphery thereof respectively with a first set of type faces and a second set of type faces, the first set of ... | 04/07/1987 |
| 4589787 | Printer with rotatable print band In a small-sized printer having hammers provided within a type ring according to the invention, a direction in which the hammer is moved is changeable over selectively so that printing may be carried out in different positions. Also, electronic apparatus ... | 05/20/1986 |
| 4541746 | Initializing apparatus for daisy wheel printer An LED/photodetector structure is disclosed positioned to cooperate with a daisy wheel print element of a daisy wheel printer and a light interrupter such that under microprocessor control, a stepping motor will rotate and home the daisy wheel print eleme... | 09/17/1985 |
| 4352576 | Serial printer having a single drive motor A printer having clutches for selectively transmitting the driving power from a single motor to a rotary shaft for rotating the type wheels and to a hammer drive shaft for driving a hammer is described. The clutches are under the control of a single contr... | 10/05/1982 |
| 4244288 | Flying printer A flying printer of reduced size and weight comprises a continuously-rotating ratchet wheel for driving a printing hammer through an interposed trigger lever and a print drum rotating continuously at a speed in a fixed ratio to that of said wheel. A strik... | 01/13/1981 |
| 4118129 | Rotary wheel printing system The print wheel and carriage position control signal generators each employ an LED light source for illuminating light sensitive detectors associated with the timing track of an encoder disc rotatably mounted on the print wheel or carriage motor shaft. Th... | 10/03/1978 |
| 4078485 | Print wheel control A control system for operating a single high-speed print wheel is disclosed. The control system includes a print wheel drive motor having a coded disc with transparent portions forming a four-level Gray code for indicating the position of the print wheel.... | 03/14/1978 |
| 4019617 | Printing device A printing device including a printing station for printing on labels which may be in visually and machine readable formats, comprises rotatable typewheels and pressure rollers which can be brought into engagement for printing on the label while advancing... | 04/26/1977 |
| 3998313 | Paper web and ink ribbon feed control for character printer An automatic character printer includes a transport for indexing a receipt form by means of flexible belts having extending pins for engaging pin feed holes in the form. The receipt form includes a leading edge indexing mark and a trailing edge indexing m... | 12/21/1976 |
| 3987884 | Printing apparatus with paper positioning tractor means and escapement means The invention is directed to a highspeed digital print-out apparatus. The apparatus involved is provided with tractors which move the paper in a first direction past a stationary print-out wheel which in conjunction with a print hammer imprints preselecte... | 10/26/1976 |
