Patent GB-1233207-A (GB)
IPC: D04D7/10
Filed: 1968-08-28
Abstract: 1,233,207. Ornamenting. TYE-SIL CORP. 28 Aug., 1968 [8 Sept., 1967], No. 41099/68. Heading B6G. Decorative ribbon loops are produced by fastening a ribbon to a relatively non-pliable backing strip, establishing a relative displacement between the pliable material and the backing strip to loop the former, securing the pliable material to the backing strip to maintain the so-formed loop, and repeating the previous two steps at spaced-apart positions along the backing strip. In Fig. 1 a loop-making machine includes an elongated body portion 10 having slidably mounted therein a feed shuttle 12 which is capable of providing the relative reciprocating motion. Means for driving the feed shuttle 12 in reciprocation includes slidably mounted push rod 14 connected at its one end to the feed shuttle 12 while its other end is pivotally connected to a Pitman bar 16. Pitman bar 16 is connected to crank 18, the latter being driven in rotation by means of gear motor 20. An air actuated plunger is mounted on the shuttle and includes a presser element which extends downwardly through the block portion of the shuttle so that it is capable of bearing on the backing strip. Mounted adjacent the front end of the machine immediately over the forward end of the body portion 10 is a commercial wire stapler 22, the latter receiving wire 24 from a suitable source of supply. Also mounted adjacent the forward end of the machine is the ribbon and the strip material severing mechanism 26. As shown in Fig. 8A, initially the ribbon 32 is fed through a guide channel in elongated body portion 10 such that a short length thereof projects outwardly of the forward end of the machine. The backing strip 40 is similarly manually fed through a channel in elongated body portion 10 and through a channel in shuttle 12 before being drawn outwardly a short distance in front of the machine. In Fig. 8A the shuttle 12 is shown in its forwardmost position. A machine is then started and crank 18 causes shuttle 12 to be reciprocated rearwardly. At the same time air pressure is fed to a plunger which causes the pressure presser element to engage backing strip 40 which is thereby drawn rearwardly along with the shuttle. Rearward movement of ribbon 32 is prevented by means of a snubbing finger. When shuttle 12 reaches its rearward position as shown in Fig. 8B, the staple head 82 comes downwardly against anvil 78 thus stapling backing strip 40 and ribbon 32 securely together. Shuttle 12 is then reciprocated forwardly as shown in Fig. 8C and since the presser element is still in engagement with the backing strip 40, the backing strip is projected outwardly of the forward end of the machine, the ribbon 32 also being drawn outwardly since it is attached to the backing strip. Shuttle 12 is then reciprocated rearwardly as shown in Fig. 8D and since the presser element is still engaged with backing strip 40 the latter is also drawn rearwardly but ribbon 32 being snubbed remains stationary. A loop 92 of ribbon is thereby formed. As the shuttle 12 reciprocates rearwardly and approaches its rearwardmost position, the air pressure supply to the plunger is released thus allowing the presser element to disengage the backing strip 40 and permitting the backing strip to slide through the shuttle 12 a short distance. As soon as shuttle 12 reaches its rearmost position the stapler 22 is actuated and the head portion 82 thereof to anchor the loop just formed. At this time also the pressure element re-engages strip 40 and the shuttle 12 is again shifted towards the front of the machine to begin the formation of a second loop. The sequence is repeated to form a plurality of loops 92 on the backing strip as shown in Fig. 8F. After a predetermined number of loops being formed the next looping step can be omitted to leave a gap between the loops. The various components of the machine are described and illustrated in detail including the construction of the elongated body portion 10, the shuttle 12, the shearing mechanism 26, the means to actuate the shuttle plunger, the stapler and the shearing mechanism. In another embodiment of the apparatus the means for releasing the presser element includes cam means.