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5860454 |
An electromagnetically-operating Jacquard control device has an electromagnet (1) with a magnetic core (3), an armature (8) and a limit stop (14) for each controlling element (16) to be controlled. The limit stop can optionally be brough...
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5735315 |
Attached to a dobby for use in a loom is an actuator which is, in turn, attached to a first finger and a second finger to move them in unison in a cycle. The first and second fingers control the position of an upper hook and a lower hook...
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5365979 |
A dobby comprises first and second hooks relatively moved in the direction of approaching and leaving each other, a lever for selectively forcing the second hook to be engaged with the first hook, and a pusher for selectively providing t...
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5236019 |
A double-lift dobby of the Hattersley type, which includes swinging levers carried by moveable connecting rods wherein each connecting rod includes a slot in which an idle roller secured to the dobby frame is engaged. The edges of each s...
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5209268 |
In a weaving mechanism which includes rocking members for controlling the movement of heddle frames for forming the shed in weaving machines, the rocking members are separated from one another on a common support shaft by spacers interpo...
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5088524 |
A double lift openshed dobby has a central shaft (1) on which are mounted a plurality of swing levers (2), each carrying a pair of articulated hooks (3), (4) kept inoperative by a spring (5), and two drive knives (13), (14) which are rec...
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5070911 |
A double lift dobby for controlling the movement of the heddle frames of a weaving machine which includes coupling members pivotally connected at each end of double swinging levers which coupling elements are selectively engaged to oscil...
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5031667 |
The hooks associated with the swinging levers in a negative dobby of a weaving machine include a notch and opposing bearing face along their inner edges for positively retaining the hub and one arm of a bolt which is selectively actuated...
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4947899 |
In a negative dobby for forming the warp shed in weaving looms, impacts and friction are reduced and consequently vibrations and noise-thereby improving the stability of the heald frames-by suitably shaping the rear end (14) of the hooks...
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4832087 |
In negative dobbies of the type incorporating swinging lever assemblies to which lever elements are connected and which lever elements support two articulated hooks, retaining members are provided in the form of pivotable locks placed be...
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4687028 |
In a negative dobby for forming the warp shed in weaving looms, the stresses on some of the machine components are greatly reduced, whereby a more precise control of the heald frames is obtained, thanks to the fact that the controls tran...
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4685492 |
In a reading device for a dobby machine, the reading levers and retaining hooks are pivotally mounted on separate axes. Each reading lever rotates a retaining hook so that the angular velocity of the retaining hook decreases as the retai...
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4557298 |
The present invention relates to dobbies incorporating double swinging levers for weaving looms. In order to simplify the construction of the reading device in the case of synchronized dobbies capable of operating both in reverse motion ...
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4474221 |
A positive dobby machine characterized in that return knives (16a), (16b) move in parallel and have pressure receiving planes (18a), (18b) perpendicular to the moving direction, first pressure receiving planes (7a), (7b) which can be con...
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4469141 |
A reciprocating double lift dobby operating an open shed has a pair of drive members 1, 2 which reciprocate at half the loom frequency and 180 degrees out of phase, one above and the other below a series of shafts 3 which are connected o...
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4465108 |
Improved means are provided in a loom dobby for taking-up play in the control unit. The surfaces of the fixed and mobile blades which limit the stroke of the rocker arms in this unit are positioned perpendicular to the line joining the p...
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4465107 |
An improved dobby uses linkages for controlling the oscillations of the fixed and mobile knives about their axes which comprise first levers fixed to the knives, second levers fixed to control shafts, and connecting rods which link said ...
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4442869 |
The apparatus includes two retaining elements associated with the control elements, two actuating elements associated with the retaining elements, a shaft acting on the actuating elements in order to pivot the latter and to displace them...
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4412563 |
To move pile heddle frames between three or rather four shed positions, a four-position rocking lever is arranged between two adjacent heddle frame lifting units and the rocking lever controlling the heddle frame. The free end of the fir...
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4386631 |
In a negative double lift dobby machine, a balance lever 8 is pivotally attached to a jack-lever, and driving members 16, 17 disposed respectively in front of upper and lower ends of the balance lever 8 reciprocate in opposite phases wit...
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4326562 |
The present invention relates to dobbies of the type in which each double swinging lever is controlled by two pulling hooks cooperating with pulling knives with reciprocal movement. Each non-selected pulling hook in each pair is raised a...
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4305432 |
A draw hook having a bearing end, the outside circumference of which projects beyond the end of the baulk and serves simultaneously as stop against the recoil or repulsion knife and the stop rail. The drawing force for the movement of th...
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4187886 |
A dobby for the formation of the shed on weaving looms, of the type in which each of the double swinging levers coupled to the heddle frames of the loom is displaced alternately by two pivoted pulling hooks which are controlled on the on...
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4182380 |
A dobby for a weaving loom, of the type in which each dobby element associated with a heddle frame or group of heddle frames comprises an actuating lever actuated by a reciprocating movement, a double swinging lever pivoted thereon and o...
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4120327 |
A negative double-lift dobby, Hattersley system, comprising controlled holding hooks and draw hooks. In order for the holding hook to be able to be controlled at any time, namely independent from the position of the draw hook, by the peg...
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3951176 |
In a chain disc-type compound dobby machine, flexible instruction receiving members are integrally fixed to supporting hooks for decreasing the weight and the moment of inertia of the moving parts so that the connecting and detaching act...
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3884273 |
A dobby mechanism provided with a lifting knife and link means connected to a heald frame. Means for interconnecting the lifting knife and link means including a latch. The lifting knife and latch being mounted to move in an arcuate path...
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3851675 |
A positive dobby of the Hattersley type comprising a baulk having draw hooks hinged on the ends thereof which are engageable patternlike with back-and-forth movable draw knives, and a pivotable stop beam which tightly presses on the draw...
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3833027 |
A double lift dobby for dobby looms, jacquard looms and the like comprising a first and second double arm crank, each of which is rotatably journaled about independent axes spaced from and parallel to each other. One arm of each of the c...
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3703195 |
High-speed heddle frame lift device, also known as a shed forming apparatus, in which the control times for the draw members amount up to two rotations of the drive heddle frame of the loom. Each heddle frame lift unit is composed of sev...
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3680601 |
A process and apparatus for reading-in of a perforated pattern card by means of reading needles for controlling the draw hooks of a dobby. An operating lever is flexibly coupled to the reading needles so as to effect the position of the ...
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3667507 |
A double lift dobby with a balance for each heald and with a draw hook for each end of the balance. The dobby also includes a draw knife slidably arranged in the same guideway with the draw hook so that, whenever the draw hook is hooked ...
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3665973 |
A dobby of the Hattersley type comprising a hook hinged to a baulk, the hook being adapted to engage with and withdrawn from a draw-blade, and a rotationally mounted support blade having a contact surface adapted to engage the hook when ...
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3602265 |
A dobby machine has retaining hooks which are guided for rectilinear reciprocal movement and are connected by pivoted links to opposite ends of a rocking member connected by linkage with a heald or dobby shaft. Each of two two-part lever...
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3517703 |
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3500873 |
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3493277 |
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3459236 |
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3441060 |
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3403705 |
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3381719 |
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3352328 |
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3307591 |
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3225792 |
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3169554 |
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3156266 |
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3125125 |
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3057379 |
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2984264 |
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2976891 |
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