Abstract: In a floor polisher for polishing a floor by rotating a pad by a motor while running the floor polisher by way of pushing an operation handle, a dust scattering prevention device in the floor polisher comprising a dust scattering prevention cover which is provided at least a lower end portion thereof with a ring-shaped core bar and the whole of which is formed into a generally skirt-like shape widened toward a lower end thereof, using a flexible cloth, the cover being attached to a lower end opening of a pad covering an upper surface side of the pad in such a manner as that a lower end portion of the cover is in contact with the floor.

Abstract: A reversing board 14 with a magnetic head 16 mounted thereon is provided at its central portion with card guides 14b1, 14b2 , the inlet ports of the card guides 14b1, 14b2 being disposed proximate to the front end openings of front and rear card guides 2A, 2B, the magnetic head 16 being biased by a compression spring 17S so that the head can be acted upwardly and downwardly, a positioning stopper 15 being engaged in a positioning groove 14a of the reversing board 14, a rotational tension force being exerted to a head reversing gear 12 by a tension spring 13S.

Abstract: A nozzle for a carpet washer operated to travel on a carpet while supplying foam of a cleansing liquid onto a surface of a carpet under pressure of a pump and brushing the surface of the carpet by a washing brush, dirty water produced as a result of the brushing being drawn into a sewage tank through the nozzle, the improvement comprising an edge portion mounted on an inner surface of the nozzle in such a manner as to extend in a horizontal direction across the nozzle and to incline upwardly in a drawing direction of the dirty water.

Abstract: A feed wheel 10 provided at front and rear sides thereof with an intermittent gear 10b and a notched gear 10d, is formed on one end portion of a cylindrical cam shaft 5 for moving a printer, with a mesh-prevention side 10c left at its center. A switch cam 11 for moving a ribbon cassette upwardly and downwardly is integrally formed on one end portion of a guide shaft 4 of the printer. A notched pinion 9 having a feed gear 9a and an intermittent feed gear 9b arranged alternately on its peripherals surface is also slidably mounted on the end portion of the guide shaft 4. When the printer is moved to a two-color shifting position in accordance with a program, the printer pushes the notched pinion 9 for movement against a compression spring 8, so that the intermittent feed gear 9b and the feed gear 9a of the notched pinion 9 is brought into mesh with the intermittent gear 10b and the notched gear 10d of the feed wheel 10, respectively, to rotate the notched pinion 9 in order to pivot a switch cam 11.

Abstract: A frame plate is movably mounted on a guide shaft erected from a base for movement upward and downward, a space formed between the base and the frame plate being served as the insertion passage for the typing sheet. The frame plate is provided thereon with a printer adapted to print such data as time and serial numbers on the inserted typing sheet, a cam shaft adapted to move the printer forward and backward, and a motor for rotating the cam shaft. A spring is disposed between the frame plate and the base in order to normally pull the frame plate toward the base side, a rubber stopper being disposed to a bottom surface of the frame plate in order to normally maintain the distance between a printer head and the surface of the typing sheet constant.

Abstract: A printing portion of a time recorder having belt printing types comprises a plurality of hour-use belt printing types arranged in a row on a surface of a first belt and gradually fed by hour unit in accordance with a time signal, a plurality of minute-use belt printing types arranged in a row on a surface of a second belt and gradually fed by minute unit in accordance with a time signal, and urging and rotating means for urging printing typefaces of the printing types arranged on the first and second belts against a printing surface of a time card inserted into the time recorder and rotating the same in order to effect a printing on the printing surface of the time card.

Abstract: A bulky dust sweeper has side brushes for brushing and gathering bulky dust, and a main brush mounted on a bottom portion of its vehicle body and adapted to sweep the bulky dust into a hopper. The bulky dust sweeper also has a scrape-in device disposed within the hopper for scraping the bulky dust which has been swept into the hopper by the main brush, into a dust connected to the inside of the hopper, a push-in device disposed at an inlet port of the duct and adapted to push the bulky duct, which has been scraped into the duct by the scrape-in device, toward the uppermost end of the duct, and a dust collecting bag removably attached to a top opening of the duct and adapted to collect the dust therein.

Abstract: A floor polisher with a dust collecting device has a buffing pad which is rotated at a high speed by a motor, a circular cover member and a skirt for covering an upper surface of the buffing pad, and a dust collecting device for exerting a collecting function thereof on an internal space surrounded by the cover member and the skirt. The floor polisher is characterized in that the cover member and the skirt are partly extended on a tangential line to form a guide chamber for a dust-containing air current, that the guide chamber is provided at an inlet port thereof with a guide wall opposite inner wall surfaces of the cover member and the skirt extended on the tangential line and an inclined plate which is inclined toward a floor, and that the guide chamber is provided at the outer end thereof with an outlet port communicating with the dust collecting device.

Abstract: A floor polisher, while travelling, causes a pad to rotate at a high speed to polish a floor. The floor polisher has a vertically moving mechanism adapted to move the pad in the vertical direction with respect to the floor, a ground pressure adjusting mechanism adapted to maintain a ground pressure of the pad a set pressure by controlling the vertically moving mechanism, and a floor protecting mechanism adapted to actuate the vertically moving mechanism to lift the pad immediately when the travel of the floor polisher is stopped.

Abstract: A call device-attached patrol recorder for use with a group of coders includes a patrol storing apparatus which includes a patrol recorder having a circuit for storing patrol information consisting of a position code of a coder arranged at every check position of a patrol course and a patrol time in turn by inserting the patrol recorder into the coder and a central unit having a circuit for reading out and printing out the patrol information recorded in the patrol recorder on paper; the patrol recorder also including a receiver for receiving a call signal emitted from a transmitter and an acknowledging device for acknowledging the receipt of the call signal.

Abstract: A parking station supervisory system particularly contemplated to avoid a traffic congestion when a vehicle is leaving is disclosed. It has a vehicle entry detector provided at an entrance, an automatic ticket issuance device installed close to the entrance, a parking fee adjusting device installed at an adequate place where drivers or users often drop in, and a vehicle departure control device installed at an exit of the parking station. When a parking ticket is inserted, the parking fee adjusting device reads the entry time recorded on the ticket and calculates the parking fee. Upon payment of the parking fee, the ticket is returned to a driver with an allowable departure time recorded on it. When a vehicle is going to leave, the driver is only required to insert the ticket into the vehicle departure control device. As long as it is within the allowable departure time, an exit gate bar is immediately opened for allowing the vehicle to leave.

Abstract: A time-clock recording and computation apparatus of which operation is controlled by a microcomputer, includes computation means comprising a data storage unit (107) in which attendance data based on a predetermined attendance system are stored, and a processing unit (100) effecting predetermined calculation based on the data stored in said data storage unit. The apparatus further includes optional rest processing means provided in the computation means. The optional rest processing means is operative to execute predetermined processing comprising the steps of storing parameters in respect of an optional rest in the data storage unit, effecting comparative judgement between the data indicative of entering and leaving and optional rest processing patterns based on said parameters, and sequentially summing up the processed results in the data storage unit.

Abstract: A working hour system corresponding to each of a number of different kinds of plural work classes is stored in the form of predetermined format in a storage section of a time recorder. A time card has a work class code expressing the work class of the person who owns the card. When the time card is inserted into the time recorder, the time recorder first reads out the work class code recorded on the time, determines the work data related to the time of acceptance of the card by arithmetic operation based on the working hour system in a storage section corresponding to the work class code, and prints the results of this arithmetic operation on the time card.

Abstract: A time recorder having an assembly with structure for reading out a personal code recorded on an inserted time card, a memory provided corresponding to each personal code for storing status data expressing at least the distinction of either "arrival queuing" or "departure queuing", a print column control for making reference to status storage corresponding to the personal code read out by a read-out at the time of receiving of the time card and also for printing the time of receiving of the time card in the arrival time column if the contents of the status storage are "arrival queuing" or in the departure time column if the contents are "departure queuing", and a storage status control for setting the contents of a status storage means to "departure queuing" every time when the printing is made in the departure time column.

Abstract: A card locking device for use in a time recorder which is constructed in such a manner that while a wire type dot matrix type printer performs its printing operation such as time printing or the like on a time card inserted into a card guide passage, a locking lever is effective in clamping the inserted time card in the card guide passage for the purpose of preventing it from being removed therefrom, and on completion of the intended printing operation, the locking lever is disengaged from the inserted time card so that the time card can be removed.

Abstract: A time recorder comprising, in combination, read-out means for reading out a personal code shown on a time card inserted; print line number storage means provided correspondingly to each personal code for storing data expressing a print line number on the time card; positioning control means for reading out the data from said print line number storage means corresponding to a personal code previously read out at the time of insertion of the time card, and for positioning a print line of the time card in conformity with said data; and data update means for updating data in said print line number storage means in accordance with predetermined criteria.

Abstract: A printing device for a time recorder in which printing operation is performed on a preselected printing column of a time card by means of a dot printer, while the latter is transversely displaced by a distance equal to the width of a printing column of the time card inserted into a card pocket.

Abstract: A cleaning card particularly for a time recorder which is formed with a large number of cleaning protrusions over the front and rear surfaces thereof, said cleaning protrusions being adapted to clean the front faces of the protective glasses for both the card detecting and code reading photoelectric sending and receiving elements which are located opposite to each other on the both sides of the cars passage in the time recorder.

Abstract: A time card printer comprising a plurality of type wheels rotatably mounted on a common supporting shaft and a plurality of printing rolls radially aligned with respective type wheels, the printing rolls being mounted on a common drive shaft which rotates in response to insertion of a time card and is parallel to the supporting shaft, each printing roll pressing the inserted time card against the type surface of the corresponding type wheel during rotation of the drive shaft, the printing rolls being moved against the corresponding type wheels one after the other.

Abstract: A recording time clock whose housing has an orifice for insertion of a time card and another orifice in which a punched coding plate may be inserted. A reading device reads the code of perforations in the coding plate and sets a code printing wheel in the printing mechanism of the clock for printing a code symbol simultaneously with the hour and minute on an inserted time card.