Abstract: An artificial pancreas comprising a blood sugar determination unit for measuring the blood sugar of the living body, an injection unit including a container for a blood sugar control agent and a feed pump for the control agent and adapted to inject the control agent into the living body, and an arithmetic control unit for calculating the dose of the control agent based on the blood sugar measurement and controlling the pump of the injection unit in accordance with the result of calculation. The blood sugar determination unit has an electrode assembly to be inserted into the living body for measuring the blood sugar. The feed pump comprises a plurality of rollers rotatably mounted on a rotatable roller holder along the outer periphery of the holder and an elastic tube having an intermediate portion reeved around some of the rollers under tension.

Abstract: Apparatus for controlling the advancement of punch cards or like sheet material past a plurality of work stations such as may comprise a data recorder used in the preparation and processing of punch cards. Control means are provided to sense the nature of an operation being performed on a particular card as well as the presence of punch cards at other of the plural work stations comprising the system and in response thereto selectively energize the advancement mechanism such that each punch card processed through the system will be advanced at an optimum rate. In the event no punching or printing operation is to take place on the punch card the speed of the advancement mechanism is increased considerably in excess of that which would otherwise enable the advancement mechanism to be accurately stopped.

Abstract: A numbering head assembly for use with a printing press and for printing consecutive numbers on material printed in the press such as invoices, tickets, etc. The numbering head assembly includes a rotating numbering head for printing consecutive numbers on each piece of paper passed through the printing press and means for supporting the rotatable numbering head in a position where it may be forced into printing engagement with the impression cylinder of the printing press. The assembly also provides means to index the numbering head once for each piece of paper printed so that a consecutive number is printed on each paper and means to selectively actuate the numbering head so that the head is brought into printing engagement with the impression cylinder only when paper is passed through the printing press.

Abstract: This ticket making machine is capable of issuing a single ticket without waste of ticket stock. A web of ticket stock having a magnetic stripe record surface is arranged to be advanced around a rotating carrier having a magnetic recording unit and one ticket (web) parting member arranged internally threof. The web is passed between the rotating carrier and a complementary ticket (web) parting member. The peripheral speed of the rotating carrier is very much greater than the speed of the advancing web, whereby the information is magnetically recorded in close to conventional manner. The one parting member is a double-ended anvil arranged to be rotated into and out of position for parting the web in cooperation with a blade forming the complementary parting member. A camming surface arrangement in the same frame structure as the carrier and web are mounted and a cam follower coupled to the anvil toggles the latter on demand for exerting relatively light force for engaging the two in parting the web.

Abstract: This chain printer has a type chain which includes an endless flexible belt capable of installing numerous type slugs. Each print slug includes a printing portion containing at least one type character and a pair of cantilevers extending from the printing portion. The print slugs are changeably mounted onto the belt by means of a U-shaped spring which permits a better printing performance and a simplified type-changing process.

Abstract: A marking gun for printing adhesive labels with pricing and the like having a printing head directly connected to an operating trigger for impressing the labels, a drive wheel is linked to the operation trigger by a ratchet and pawl assembly for incremental advancing of the labels carried on a backing tape, the tape being transported by radial drive teeth which engage perforations in the backing tape, separation of the labels from the tape being aided by a cam operated pressure shoe, and threading of the tape through the gun being aided by a retractable spring biased guide member which holds the backing tape against the drive wheel during operation, and guides the tape around the drive wheel during threading when retracted by a thumb trigger that projects from the casing of the marking gun.