DE246126C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

246126 CLASS 32 «. GROUP

in AISEAU, Belg.

of ports for glass furnaces.

Patented in the German Empire on September 13, 1910.

The invention relates to tongs for removing glass ports from ovens, and to those that are given a swinging motion before being removed can to detach the port from its base.

Such pliers were previously carried by a transfer table and could only for Take out, but not used to pour out the ίο ports, for which purpose special tongs were required. Other glass port tongs, which were used for taking out and pouring out, allowed the swinging one No movement for the purpose of detaching the port from the base.

To get the job done when using the pliers to remove and pour the ports to simplify and speed up, the pliers in the present device freely suspended on an overhead crane with a rotating device, and the invention consists in the Means, in the case of such suspended pliers, to achieve the above-mentioned oscillating movement to allow, but to avoid unwanted vibrations and rotations of the tongs when pouring the port.

In the drawing, an embodiment of the invention is shown.

Fig. Ι shows a side view.
FIG. 2 is a longitudinal section along the line ABCD of FIG. 1.

Fig. 3 shows on a larger scale the articulation of the pliers on the frame.

The pliers consist of two arms 1 that rotate around pin 2 in the ring body 3, which is mounted on balls in the housing 4 on the frame 5. The frame is suspended from the turntable 6 of the carriage 7 of the trolley 8, specifically by means of rollers 9 over which the suspension chains 10 of the winches 11 run. In the middle of the ring body 3, the axis 12 is non-rotatably mounted, which is located with a pin in the bearing 13 on the frame 5. The gear 14, which meshes with the gear 15, is keyed to the rear end of this axle 12. This is rotated by means of the hand crank disk 16, the axis of which is provided with the pawl device 17. By means of this hand crank wheel 16 you can turn the tongs about their longitudinal axis in order to pour out the port. The two arms 1 of the pliers are guided in the link 18, which is fastened on the axis 12. Their actuation for the purpose of opening and closing the pliers takes place by means of the hand crank wheel 19 which is keyed onto the end of the screw 20 provided with two opposing screw threads which engage in movable nuts 21 on the arms d of the pliers. The axis 12 continues forward between the jaws of the pliers in a resilient stop device 22 which has the purpose of forming an elastic limit for the penetration of the port between the jaws of the pliers.

Claims (2)

The frame 5 is attached to the brackets of the rollers 9 by means of joints 23 and 24, and the frame 5 can be rotated around the joint 24 in the vertical plane passing through the joints 23 and 24 by setting the hand crank wheel 25 in motion, which is keyed onto the axis of the gear 26, which in turn engages with the gear 27. This is connected to the nut 28 of the screw 29, and this screw nut 28 carries the framework 5 through which the screw 29 passes. The brackets of the rollers 9 are connected to one another by a transverse rod 30. On each of them sits a pin 31 which, when the scaffolding 5 is lifted a given distance by means of the winches 11, engages in corresponding guides 32 of the turntable 6 ao so that they cause transverse vibrations or rotations of the scaffolding 5 when pouring out the port prevent the pouring table. The frame 5 with the working space 33 provided therein balances the weight of the tongs and the port with the glass contained therein when the port is gripped by the tongs. From the work space 33, which can be overloaded in order to achieve a certain excess weight compared to the tongs, the port and its contents, the worker controls the various electric drives by means of the switches 34, 35, 36 and 37 for the motors that are used for lifting, serve to move the carriage, to turn the turntable and to move the gangway. To pull the port out of the furnace and pour it onto the casting table, the tongs are brought into the correct position by means of the gangway 8 in a known manner to grip the port in the oven, and the tongs are pressed against the port by means of the crank wheel 19 at. If you wanted to start the winch 11 by means of the switch 34 at this moment, you could damage the harbor considerably if it were to be baked on the oven floor. To a sudden. To avoid drive on the part of the winch 11, a slight oscillation of the frame 5 around the joint 24 is brought about by means of the hand crank wheel 25. The rear part of the frame 5 is lowered by gravity and with a force predetermined in accordance with the weight compensation for this frame, and the port is tilted somewhat. One can then bring the port over the pouring table and pour it out there by suitable actuation of the various switches, which can also be done simultaneously at will, the pins 31 engaging in the guides 32 for the stated purpose. By doing the same movements in reverse order you can bring the port back into the oven. Godfather ν T-A ν Proverbs: 1. Suspended from an overhead crane with chains Pliers for removing and pouring ports for glass furnace, thereby characterized in that before the removal of the port from the furnace the structure carrying the actual tongs (1) (5) by changing the suspension (at 23) an oscillating movement about a horizontal axis (24) is given that forms a right angle with the longitudinal and rotational axis of the pliers, for the purpose of harboring its To solve the pad. 2. Harbor pliers according to claim 1, characterized in that the freely suspended Scaffolding or the intermediate parts used to suspend it are provided with pegs (31) which, when lifting by a certain amount in corresponding guides (32) of the traveling crane (7, 8, 9, 10, 11) with rotating device (6) intervene and thus prevent fluctuations or rotations of the scaffolding when pouring out the port. 1 sheet of drawings.